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Finding the Fourth Proportional to 2,136.52, 3,202.35 and 836.92

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Solution

The fourth proportional to 2,136.52, 3,202.35 and 836.92 is: 1,254.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,136.52 : 3,202.35 = 836.92 : x
  2. Step 2: Convert to fraction form
    2,136.52/3,202.35 = 836.92/x
  3. Step 3: Cross multiply
    2,136.52x = 3,202.35 × 836.92
  4. Step 4: Simplify right side
    2,136.52x = 2,680,110.76
  5. Step 5: Solve for x
    x = 2,680,110.76/2,136.52
  6. Step 6: Final answer
    x = 1,254.43

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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.