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Finding the Fourth Proportional to 63,507.72, 87,600.96 and 40,876.20

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Solution

The fourth proportional to 63,507.72, 87,600.96 and 40,876.20 is: 56,383.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,507.72 : 87,600.96 = 40,876.20 : x
  2. Step 2: Convert to fraction form
    63,507.72/87,600.96 = 40,876.20/x
  3. Step 3: Cross multiply
    63,507.72x = 87,600.96 × 40,876.20
  4. Step 4: Simplify right side
    63,507.72x = 3,580,794,361.15
  5. Step 5: Solve for x
    x = 3,580,794,361.15/63,507.72
  6. Step 6: Final answer
    x = 56,383.61

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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.