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Finding the Fourth Proportional to 8,657.96, 11,948.06 and 4,932.20

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Solution

The fourth proportional to 8,657.96, 11,948.06 and 4,932.20 is: 6,806.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,657.96 : 11,948.06 = 4,932.20 : x
  2. Step 2: Convert to fraction form
    8,657.96/11,948.06 = 4,932.20/x
  3. Step 3: Cross multiply
    8,657.96x = 11,948.06 × 4,932.20
  4. Step 4: Simplify right side
    8,657.96x = 58,930,221.53
  5. Step 5: Solve for x
    x = 58,930,221.53/8,657.96
  6. Step 6: Final answer
    x = 6,806.48

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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.