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Finding the Fourth Proportional to 48,625.68, 72,942.60 and 13,565.76

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Solution

The fourth proportional to 48,625.68, 72,942.60 and 13,565.76 is: 20,349.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,625.68 : 72,942.60 = 13,565.76 : x
  2. Step 2: Convert to fraction form
    48,625.68/72,942.60 = 13,565.76/x
  3. Step 3: Cross multiply
    48,625.68x = 72,942.60 × 13,565.76
  4. Step 4: Simplify right side
    48,625.68x = 989,521,805.38
  5. Step 5: Solve for x
    x = 989,521,805.38/48,625.68
  6. Step 6: Final answer
    x = 20,349.78

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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.