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Finding the Fourth Proportional to 52,450.88, 78,687.84 and 15,517.76

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Solution

The fourth proportional to 52,450.88, 78,687.84 and 15,517.76 is: 23,280.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,450.88 : 78,687.84 = 15,517.76 : x
  2. Step 2: Convert to fraction form
    52,450.88/78,687.84 = 15,517.76/x
  3. Step 3: Cross multiply
    52,450.88x = 78,687.84 × 15,517.76
  4. Step 4: Simplify right side
    52,450.88x = 1,221,059,016.04
  5. Step 5: Solve for x
    x = 1,221,059,016.04/52,450.88
  6. Step 6: Final answer
    x = 23,280.05

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1.5x scale

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.