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Finding the Fourth Proportional to 83,846.88, 125,774.80 and 21,517.92

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Solution

The fourth proportional to 83,846.88, 125,774.80 and 21,517.92 is: 32,278.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,846.88 : 125,774.80 = 21,517.92 : x
  2. Step 2: Convert to fraction form
    83,846.88/125,774.80 = 21,517.92/x
  3. Step 3: Cross multiply
    83,846.88x = 125,774.80 × 21,517.92
  4. Step 4: Simplify right side
    83,846.88x = 2,706,412,084.42
  5. Step 5: Solve for x
    x = 2,706,412,084.42/83,846.88
  6. Step 6: Final answer
    x = 32,278.03

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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.