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Finding the Fourth Proportional to 63,708.81, 87,919.20 and 35,029.68

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Solution

The fourth proportional to 63,708.81, 87,919.20 and 35,029.68 is: 48,341.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,708.81 : 87,919.20 = 35,029.68 : x
  2. Step 2: Convert to fraction form
    63,708.81/87,919.20 = 35,029.68/x
  3. Step 3: Cross multiply
    63,708.81x = 87,919.20 × 35,029.68
  4. Step 4: Simplify right side
    63,708.81x = 3,079,781,441.86
  5. Step 5: Solve for x
    x = 3,079,781,441.86/63,708.81
  6. Step 6: Final answer
    x = 48,341.53

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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.