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Finding the Fourth Proportional to 72,424.56, 108,639.12 and 22,504.92

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Solution

The fourth proportional to 72,424.56, 108,639.12 and 22,504.92 is: 33,758.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,424.56 : 108,639.12 = 22,504.92 : x
  2. Step 2: Convert to fraction form
    72,424.56/108,639.12 = 22,504.92/x
  3. Step 3: Cross multiply
    72,424.56x = 108,639.12 × 22,504.92
  4. Step 4: Simplify right side
    72,424.56x = 2,444,914,704.47
  5. Step 5: Solve for x
    x = 2,444,914,704.47/72,424.56
  6. Step 6: Final answer
    x = 33,758.09

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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.