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Finding the Fourth Proportional to 63,899.66, 88,179.57 and 40,039.49

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Solution

The fourth proportional to 63,899.66, 88,179.57 and 40,039.49 is: 55,253.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,899.66 : 88,179.57 = 40,039.49 : x
  2. Step 2: Convert to fraction form
    63,899.66/88,179.57 = 40,039.49/x
  3. Step 3: Cross multiply
    63,899.66x = 88,179.57 × 40,039.49
  4. Step 4: Simplify right side
    63,899.66x = 3,530,665,231.67
  5. Step 5: Solve for x
    x = 3,530,665,231.67/63,899.66
  6. Step 6: Final answer
    x = 55,253.27

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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.