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Finding the Fourth Proportional to 62,385.39, 86,101.56 and 39,734.16

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Solution

The fourth proportional to 62,385.39, 86,101.56 and 39,734.16 is: 54,839.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,385.39 : 86,101.56 = 39,734.16 : x
  2. Step 2: Convert to fraction form
    62,385.39/86,101.56 = 39,734.16/x
  3. Step 3: Cross multiply
    62,385.39x = 86,101.56 × 39,734.16
  4. Step 4: Simplify right side
    62,385.39x = 3,421,173,161.29
  5. Step 5: Solve for x
    x = 3,421,173,161.29/62,385.39
  6. Step 6: Final answer
    x = 54,839.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.