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Finding the Fourth Proportional to 57,870.52, 86,808.75 and 16,320.76

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Solution

The fourth proportional to 57,870.52, 86,808.75 and 16,320.76 is: 24,481.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,870.52 : 86,808.75 = 16,320.76 : x
  2. Step 2: Convert to fraction form
    57,870.52/86,808.75 = 16,320.76/x
  3. Step 3: Cross multiply
    57,870.52x = 86,808.75 × 16,320.76
  4. Step 4: Simplify right side
    57,870.52x = 1,416,784,774.65
  5. Step 5: Solve for x
    x = 1,416,784,774.65/57,870.52
  6. Step 6: Final answer
    x = 24,481.98

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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.