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Finding the Fourth Proportional to 57,791.49, 86,695.85 and 17,807.13

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Solution

The fourth proportional to 57,791.49, 86,695.85 and 17,807.13 is: 26,713.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,791.49 : 86,695.85 = 17,807.13 : x
  2. Step 2: Convert to fraction form
    57,791.49/86,695.85 = 17,807.13/x
  3. Step 3: Cross multiply
    57,791.49x = 86,695.85 × 17,807.13
  4. Step 4: Simplify right side
    57,791.49x = 1,543,804,271.41
  5. Step 5: Solve for x
    x = 1,543,804,271.41/57,791.49
  6. Step 6: Final answer
    x = 26,713.35

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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.