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Finding the Fourth Proportional to 83,932.80, 125,764.80 and 44,438.40

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Solution

The fourth proportional to 83,932.80, 125,764.80 and 44,438.40 is: 66,586.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,932.80 : 125,764.80 = 44,438.40 : x
  2. Step 2: Convert to fraction form
    83,932.80/125,764.80 = 44,438.40/x
  3. Step 3: Cross multiply
    83,932.80x = 125,764.80 × 44,438.40
  4. Step 4: Simplify right side
    83,932.80x = 5,588,786,488.32
  5. Step 5: Solve for x
    x = 5,588,786,488.32/83,932.80
  6. Step 6: Final answer
    x = 66,586.44

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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.