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Finding the Fourth Proportional to 66,703.20, 92,049.12 and 36,488.42

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Solution

The fourth proportional to 66,703.20, 92,049.12 and 36,488.42 is: 50,353.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,703.20 : 92,049.12 = 36,488.42 : x
  2. Step 2: Convert to fraction form
    66,703.20/92,049.12 = 36,488.42/x
  3. Step 3: Cross multiply
    66,703.20x = 92,049.12 × 36,488.42
  4. Step 4: Simplify right side
    66,703.20x = 3,358,726,951.19
  5. Step 5: Solve for x
    x = 3,358,726,951.19/66,703.20
  6. Step 6: Final answer
    x = 50,353.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.