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Finding the Fourth Proportional to 57,807.49, 86,710.01 and 26,642.74

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Solution

The fourth proportional to 57,807.49, 86,710.01 and 26,642.74 is: 39,963.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,807.49 : 86,710.01 = 26,642.74 : x
  2. Step 2: Convert to fraction form
    57,807.49/86,710.01 = 26,642.74/x
  3. Step 3: Cross multiply
    57,807.49x = 86,710.01 × 26,642.74
  4. Step 4: Simplify right side
    57,807.49x = 2,310,192,251.83
  5. Step 5: Solve for x
    x = 2,310,192,251.83/57,807.49
  6. Step 6: Final answer
    x = 39,963.55

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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.