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Finding the Fourth Proportional to 52,882.80, 79,327.80 and 16,856.40

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Solution

The fourth proportional to 52,882.80, 79,327.80 and 16,856.40 is: 25,285.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,882.80 : 79,327.80 = 16,856.40 : x
  2. Step 2: Convert to fraction form
    52,882.80/79,327.80 = 16,856.40/x
  3. Step 3: Cross multiply
    52,882.80x = 79,327.80 × 16,856.40
  4. Step 4: Simplify right side
    52,882.80x = 1,337,181,127.92
  5. Step 5: Solve for x
    x = 1,337,181,127.92/52,882.80
  6. Step 6: Final answer
    x = 25,285.75

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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.