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Finding the Fourth Proportional to 63,618.60, 95,428.13 and 21,499.02

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Solution

The fourth proportional to 63,618.60, 95,428.13 and 21,499.02 is: 32,248.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,618.60 : 95,428.13 = 21,499.02 : x
  2. Step 2: Convert to fraction form
    63,618.60/95,428.13 = 21,499.02/x
  3. Step 3: Cross multiply
    63,618.60x = 95,428.13 × 21,499.02
  4. Step 4: Simplify right side
    63,618.60x = 2,051,611,167.94
  5. Step 5: Solve for x
    x = 2,051,611,167.94/63,618.60
  6. Step 6: Final answer
    x = 32,248.61

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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.