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Finding the Fourth Proportional to 6,257.92, 8,635.90 and 3,386.64

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Solution

The fourth proportional to 6,257.92, 8,635.90 and 3,386.64 is: 4,673.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,257.92 : 8,635.90 = 3,386.64 : x
  2. Step 2: Convert to fraction form
    6,257.92/8,635.90 = 3,386.64/x
  3. Step 3: Cross multiply
    6,257.92x = 8,635.90 × 3,386.64
  4. Step 4: Simplify right side
    6,257.92x = 29,246,686.86
  5. Step 5: Solve for x
    x = 29,246,686.86/6,257.92
  6. Step 6: Final answer
    x = 4,673.55

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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.