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Finding the Fourth Proportional to 57,866.16, 86,792.76 and 39,265.68

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Solution

The fourth proportional to 57,866.16, 86,792.76 and 39,265.68 is: 58,894.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,866.16 : 86,792.76 = 39,265.68 : x
  2. Step 2: Convert to fraction form
    57,866.16/86,792.76 = 39,265.68/x
  3. Step 3: Cross multiply
    57,866.16x = 86,792.76 × 39,265.68
  4. Step 4: Simplify right side
    57,866.16x = 3,407,976,740.48
  5. Step 5: Solve for x
    x = 3,407,976,740.48/57,866.16
  6. Step 6: Final answer
    x = 58,894.12

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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.