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Finding the Fourth Proportional to 8,659.43, 11,949.97 and 4,680.53

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Solution

The fourth proportional to 8,659.43, 11,949.97 and 4,680.53 is: 6,459.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,659.43 : 11,949.97 = 4,680.53 : x
  2. Step 2: Convert to fraction form
    8,659.43/11,949.97 = 4,680.53/x
  3. Step 3: Cross multiply
    8,659.43x = 11,949.97 × 4,680.53
  4. Step 4: Simplify right side
    8,659.43x = 55,932,193.08
  5. Step 5: Solve for x
    x = 55,932,193.08/8,659.43
  6. Step 6: Final answer
    x = 6,459.11

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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.