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Finding the Fourth Proportional to 32,400, 48,601.44 and 10,221.12

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Solution

The fourth proportional to 32,400, 48,601.44 and 10,221.12 is: 15,332.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,400 : 48,601.44 = 10,221.12 : x
  2. Step 2: Convert to fraction form
    32,400/48,601.44 = 10,221.12/x
  3. Step 3: Cross multiply
    32,400x = 48,601.44 × 10,221.12
  4. Step 4: Simplify right side
    32,400x = 496,761,150.41
  5. Step 5: Solve for x
    x = 496,761,150.41/32,400
  6. Step 6: Final answer
    x = 15,332.13

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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.