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Finding the Fourth Proportional to 57,863.76, 86,706.33 and 39,070.14

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Solution

The fourth proportional to 57,863.76, 86,706.33 and 39,070.14 is: 58,544.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,863.76 : 86,706.33 = 39,070.14 : x
  2. Step 2: Convert to fraction form
    57,863.76/86,706.33 = 39,070.14/x
  3. Step 3: Cross multiply
    57,863.76x = 86,706.33 × 39,070.14
  4. Step 4: Simplify right side
    57,863.76x = 3,387,628,451.99
  5. Step 5: Solve for x
    x = 3,387,628,451.99/57,863.76
  6. Step 6: Final answer
    x = 58,544.91

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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.