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Finding the Fourth Proportional to 71,353.92, 107,008.96 and 27,001.60

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Solution

The fourth proportional to 71,353.92, 107,008.96 and 27,001.60 is: 40,494.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,353.92 : 107,008.96 = 27,001.60 : x
  2. Step 2: Convert to fraction form
    71,353.92/107,008.96 = 27,001.60/x
  3. Step 3: Cross multiply
    71,353.92x = 107,008.96 × 27,001.60
  4. Step 4: Simplify right side
    71,353.92x = 2,889,413,134.34
  5. Step 5: Solve for x
    x = 2,889,413,134.34/71,353.92
  6. Step 6: Final answer
    x = 40,494.11

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1.5x scale

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.