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Finding the Fourth Proportional to 57,866.76, 86,710.82 and 39,073.14

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Solution

The fourth proportional to 57,866.76, 86,710.82 and 39,073.14 is: 58,549.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,866.76 : 86,710.82 = 39,073.14 : x
  2. Step 2: Convert to fraction form
    57,866.76/86,710.82 = 39,073.14/x
  3. Step 3: Cross multiply
    57,866.76x = 86,710.82 × 39,073.14
  4. Step 4: Simplify right side
    57,866.76x = 3,388,064,009.37
  5. Step 5: Solve for x
    x = 3,388,064,009.37/57,866.76
  6. Step 6: Final answer
    x = 58,549.40

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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.