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Finding the Fourth Proportional to 63,649.80, 87,834.22 and 35,357.28

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Solution

The fourth proportional to 63,649.80, 87,834.22 and 35,357.28 is: 48,791.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,649.80 : 87,834.22 = 35,357.28 : x
  2. Step 2: Convert to fraction form
    63,649.80/87,834.22 = 35,357.28/x
  3. Step 3: Cross multiply
    63,649.80x = 87,834.22 × 35,357.28
  4. Step 4: Simplify right side
    63,649.80x = 3,105,579,110.12
  5. Step 5: Solve for x
    x = 3,105,579,110.12/63,649.80
  6. Step 6: Final answer
    x = 48,791.66

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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.