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Finding the Fourth Proportional to 72,251.28, 108,393.12 and 25,507.80

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Solution

The fourth proportional to 72,251.28, 108,393.12 and 25,507.80 is: 38,267.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,251.28 : 108,393.12 = 25,507.80 : x
  2. Step 2: Convert to fraction form
    72,251.28/108,393.12 = 25,507.80/x
  3. Step 3: Cross multiply
    72,251.28x = 108,393.12 × 25,507.80
  4. Step 4: Simplify right side
    72,251.28x = 2,764,870,026.34
  5. Step 5: Solve for x
    x = 2,764,870,026.34/72,251.28
  6. Step 6: Final answer
    x = 38,267.42

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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.