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Finding the Fourth Proportional to 14,269,888,979.30, 21,404,833,468.95 and 14,269,888,979.30

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Solution

The fourth proportional to 14,269,888,979.30, 21,404,833,468.95 and 14,269,888,979.30 is: 21,404,833,468.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,269,888,979.30 : 21,404,833,468.95 = 14,269,888,979.30 : x
  2. Step 2: Convert to fraction form
    14,269,888,979.30/21,404,833,468.95 = 14,269,888,979.30/x
  3. Step 3: Cross multiply
    14,269,888,979.30x = 21,404,833,468.95 × 14,269,888,979.30
  4. Step 4: Simplify right side
    14,269,888,979.30x = 305,444,597,222,321,356,800
  5. Step 5: Solve for x
    x = 305,444,597,222,321,356,800/14,269,888,979.30
  6. Step 6: Final answer
    x = 21,404,833,468.95

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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.