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Finding the Fourth Proportional to 57,760.61, 86,619.04 and 22,681.13

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Solution

The fourth proportional to 57,760.61, 86,619.04 and 22,681.13 is: 34,013.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,760.61 : 86,619.04 = 22,681.13 : x
  2. Step 2: Convert to fraction form
    57,760.61/86,619.04 = 22,681.13/x
  3. Step 3: Cross multiply
    57,760.61x = 86,619.04 × 22,681.13
  4. Step 4: Simplify right side
    57,760.61x = 1,964,617,216.92
  5. Step 5: Solve for x
    x = 1,964,617,216.92/57,760.61
  6. Step 6: Final answer
    x = 34,013.10

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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.