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Finding the Fourth Proportional to 52,380.84, 78,545.52 and 18,635.52

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Solution

The fourth proportional to 52,380.84, 78,545.52 and 18,635.52 is: 27,944.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,380.84 : 78,545.52 = 18,635.52 : x
  2. Step 2: Convert to fraction form
    52,380.84/78,545.52 = 18,635.52/x
  3. Step 3: Cross multiply
    52,380.84x = 78,545.52 × 18,635.52
  4. Step 4: Simplify right side
    52,380.84x = 1,463,736,608.87
  5. Step 5: Solve for x
    x = 1,463,736,608.87/52,380.84
  6. Step 6: Final answer
    x = 27,944.12

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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.