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Finding the Fourth Proportional to 3,432.96, 5,149.45 and 835.88

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Solution

The fourth proportional to 3,432.96, 5,149.45 and 835.88 is: 1,253.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,432.96 : 5,149.45 = 835.88 : x
  2. Step 2: Convert to fraction form
    3,432.96/5,149.45 = 835.88/x
  3. Step 3: Cross multiply
    3,432.96x = 5,149.45 × 835.88
  4. Step 4: Simplify right side
    3,432.96x = 4,304,322.27
  5. Step 5: Solve for x
    x = 4,304,322.27/3,432.96
  6. Step 6: Final answer
    x = 1,253.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.