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Finding the Fourth Proportional to 19,315,662,431.10, 28,973,493,646.65 and 19,315,662,431.10

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Solution

The fourth proportional to 19,315,662,431.10, 28,973,493,646.65 and 19,315,662,431.10 is: 28,973,493,646.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,315,662,431.10 : 28,973,493,646.65 = 19,315,662,431.10 : x
  2. Step 2: Convert to fraction form
    19,315,662,431.10/28,973,493,646.65 = 19,315,662,431.10/x
  3. Step 3: Cross multiply
    19,315,662,431.10x = 28,973,493,646.65 × 19,315,662,431.10
  4. Step 4: Simplify right side
    19,315,662,431.10x = 559,642,222,728,311,930,880
  5. Step 5: Solve for x
    x = 559,642,222,728,311,930,880/19,315,662,431.10
  6. Step 6: Final answer
    x = 28,973,493,646.65

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.