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Finding the Fourth Proportional to 52,816, 79,125.12 and 26,489.92

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Solution

The fourth proportional to 52,816, 79,125.12 and 26,489.92 is: 39,685.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,816 : 79,125.12 = 26,489.92 : x
  2. Step 2: Convert to fraction form
    52,816/79,125.12 = 26,489.92/x
  3. Step 3: Cross multiply
    52,816x = 79,125.12 × 26,489.92
  4. Step 4: Simplify right side
    52,816x = 2,096,018,098.79
  5. Step 5: Solve for x
    x = 2,096,018,098.79/52,816
  6. Step 6: Final answer
    x = 39,685.29

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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.