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Finding the Fourth Proportional to 32,387.20, 44,695.20 and 18,239.20

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Solution

The fourth proportional to 32,387.20, 44,695.20 and 18,239.20 is: 25,170.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,387.20 : 44,695.20 = 18,239.20 : x
  2. Step 2: Convert to fraction form
    32,387.20/44,695.20 = 18,239.20/x
  3. Step 3: Cross multiply
    32,387.20x = 44,695.20 × 18,239.20
  4. Step 4: Simplify right side
    32,387.20x = 815,204,691.84
  5. Step 5: Solve for x
    x = 815,204,691.84/32,387.20
  6. Step 6: Final answer
    x = 25,170.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.