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Finding the Fourth Proportional to 32,442.20, 48,663.30 and 18,396.80

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Solution

The fourth proportional to 32,442.20, 48,663.30 and 18,396.80 is: 27,595.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,442.20 : 48,663.30 = 18,396.80 : x
  2. Step 2: Convert to fraction form
    32,442.20/48,663.30 = 18,396.80/x
  3. Step 3: Cross multiply
    32,442.20x = 48,663.30 × 18,396.80
  4. Step 4: Simplify right side
    32,442.20x = 895,248,997.44
  5. Step 5: Solve for x
    x = 895,248,997.44/32,442.20
  6. Step 6: Final answer
    x = 27,595.20

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.