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Finding the Fourth Proportional to 3,307.92, 4,568.16 and 2,996.88

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Solution

The fourth proportional to 3,307.92, 4,568.16 and 2,996.88 is: 4,138.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,307.92 : 4,568.16 = 2,996.88 : x
  2. Step 2: Convert to fraction form
    3,307.92/4,568.16 = 2,996.88/x
  3. Step 3: Cross multiply
    3,307.92x = 4,568.16 × 2,996.88
  4. Step 4: Simplify right side
    3,307.92x = 13,690,227.34
  5. Step 5: Solve for x
    x = 13,690,227.34/3,307.92
  6. Step 6: Final answer
    x = 4,138.62

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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.