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Finding the Fourth Proportional to 19,213, 28,794.39 and 9,845.08

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Solution

The fourth proportional to 19,213, 28,794.39 and 9,845.08 is: 14,754.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,213 : 28,794.39 = 9,845.08 : x
  2. Step 2: Convert to fraction form
    19,213/28,794.39 = 9,845.08/x
  3. Step 3: Cross multiply
    19,213x = 28,794.39 × 9,845.08
  4. Step 4: Simplify right side
    19,213x = 283,483,073.10
  5. Step 5: Solve for x
    x = 283,483,073.10/19,213
  6. Step 6: Final answer
    x = 14,754.75

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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.