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Finding the Fourth Proportional to 4,337.92, 5,986.80 and 3,160.12

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Solution

The fourth proportional to 4,337.92, 5,986.80 and 3,160.12 is: 4,361.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,337.92 : 5,986.80 = 3,160.12 : x
  2. Step 2: Convert to fraction form
    4,337.92/5,986.80 = 3,160.12/x
  3. Step 3: Cross multiply
    4,337.92x = 5,986.80 × 3,160.12
  4. Step 4: Simplify right side
    4,337.92x = 18,919,006.42
  5. Step 5: Solve for x
    x = 18,919,006.42/4,337.92
  6. Step 6: Final answer
    x = 4,361.31

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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.