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Finding the Fourth Proportional to 71,927.81, 107,887.80 and 22,007.92

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Solution

The fourth proportional to 71,927.81, 107,887.80 and 22,007.92 is: 33,010.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,927.81 : 107,887.80 = 22,007.92 : x
  2. Step 2: Convert to fraction form
    71,927.81/107,887.80 = 22,007.92/x
  3. Step 3: Cross multiply
    71,927.81x = 107,887.80 × 22,007.92
  4. Step 4: Simplify right side
    71,927.81x = 2,374,386,071.38
  5. Step 5: Solve for x
    x = 2,374,386,071.38/71,927.81
  6. Step 6: Final answer
    x = 33,010.68

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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.