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Finding the Fourth Proportional to 32,475.20, 48,712.80 and 11,691.20

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Solution

The fourth proportional to 32,475.20, 48,712.80 and 11,691.20 is: 17,536.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,475.20 : 48,712.80 = 11,691.20 : x
  2. Step 2: Convert to fraction form
    32,475.20/48,712.80 = 11,691.20/x
  3. Step 3: Cross multiply
    32,475.20x = 48,712.80 × 11,691.20
  4. Step 4: Simplify right side
    32,475.20x = 569,511,087.36
  5. Step 5: Solve for x
    x = 569,511,087.36/32,475.20
  6. Step 6: Final answer
    x = 17,536.80

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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.