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Finding the Fourth Proportional to 63,414.70, 87,512.22 and 35,120.38

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Solution

The fourth proportional to 63,414.70, 87,512.22 and 35,120.38 is: 48,466.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,414.70 : 87,512.22 = 35,120.38 : x
  2. Step 2: Convert to fraction form
    63,414.70/87,512.22 = 35,120.38/x
  3. Step 3: Cross multiply
    63,414.70x = 87,512.22 × 35,120.38
  4. Step 4: Simplify right side
    63,414.70x = 3,073,462,421.04
  5. Step 5: Solve for x
    x = 3,073,462,421.04/63,414.70
  6. Step 6: Final answer
    x = 48,466.09

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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.