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Finding the Fourth Proportional to 6,463.17, 8,920.13 and 3,946.73

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Solution

The fourth proportional to 6,463.17, 8,920.13 and 3,946.73 is: 5,447.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,463.17 : 8,920.13 = 3,946.73 : x
  2. Step 2: Convert to fraction form
    6,463.17/8,920.13 = 3,946.73/x
  3. Step 3: Cross multiply
    6,463.17x = 8,920.13 × 3,946.73
  4. Step 4: Simplify right side
    6,463.17x = 35,205,280.34
  5. Step 5: Solve for x
    x = 35,205,280.34/6,463.17
  6. Step 6: Final answer
    x = 5,447.06

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Double scale
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Similar ratio
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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.