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Finding the Fourth Proportional to 57,572.69, 86,384.95 and 31,237.97

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Solution

The fourth proportional to 57,572.69, 86,384.95 and 31,237.97 is: 46,871.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,572.69 : 86,384.95 = 31,237.97 : x
  2. Step 2: Convert to fraction form
    57,572.69/86,384.95 = 31,237.97/x
  3. Step 3: Cross multiply
    57,572.69x = 86,384.95 × 31,237.97
  4. Step 4: Simplify right side
    57,572.69x = 2,698,489,966.53
  5. Step 5: Solve for x
    x = 2,698,489,966.53/57,572.69
  6. Step 6: Final answer
    x = 46,871.01

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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.