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Finding the Fourth Proportional to 48,555.20, 72,832.80 and 38,532.80

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Solution

The fourth proportional to 48,555.20, 72,832.80 and 38,532.80 is: 57,799.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,555.20 : 72,832.80 = 38,532.80 : x
  2. Step 2: Convert to fraction form
    48,555.20/72,832.80 = 38,532.80/x
  3. Step 3: Cross multiply
    48,555.20x = 72,832.80 × 38,532.80
  4. Step 4: Simplify right side
    48,555.20x = 2,806,451,715.84
  5. Step 5: Solve for x
    x = 2,806,451,715.84/48,555.20
  6. Step 6: Final answer
    x = 57,799.20

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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.