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Finding the Fourth Proportional to 71,089.92, 106,660.80 and 37,812.96

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Solution

The fourth proportional to 71,089.92, 106,660.80 and 37,812.96 is: 56,733.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,089.92 : 106,660.80 = 37,812.96 : x
  2. Step 2: Convert to fraction form
    71,089.92/106,660.80 = 37,812.96/x
  3. Step 3: Cross multiply
    71,089.92x = 106,660.80 × 37,812.96
  4. Step 4: Simplify right side
    71,089.92x = 4,033,160,563.97
  5. Step 5: Solve for x
    x = 4,033,160,563.97/71,089.92
  6. Step 6: Final answer
    x = 56,733.23

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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.