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Finding the Fourth Proportional to 72,374.70, 108,562.05 and 25,632.30

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Solution

The fourth proportional to 72,374.70, 108,562.05 and 25,632.30 is: 38,448.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,374.70 : 108,562.05 = 25,632.30 : x
  2. Step 2: Convert to fraction form
    72,374.70/108,562.05 = 25,632.30/x
  3. Step 3: Cross multiply
    72,374.70x = 108,562.05 × 25,632.30
  4. Step 4: Simplify right side
    72,374.70x = 2,782,695,034.22
  5. Step 5: Solve for x
    x = 2,782,695,034.22/72,374.70
  6. Step 6: Final answer
    x = 38,448.45

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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.