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Finding the Fourth Proportional to 6,424.92, 8,866.56 and 3,592.20

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Solution

The fourth proportional to 6,424.92, 8,866.56 and 3,592.20 is: 4,957.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,424.92 : 8,866.56 = 3,592.20 : x
  2. Step 2: Convert to fraction form
    6,424.92/8,866.56 = 3,592.20/x
  3. Step 3: Cross multiply
    6,424.92x = 8,866.56 × 3,592.20
  4. Step 4: Simplify right side
    6,424.92x = 31,850,456.83
  5. Step 5: Solve for x
    x = 31,850,456.83/6,424.92
  6. Step 6: Final answer
    x = 4,957.33

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Half scale
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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.