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Finding the Fourth Proportional to 63,919.65, 88,205.33 and 36,689.45

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Solution

The fourth proportional to 63,919.65, 88,205.33 and 36,689.45 is: 50,629.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,919.65 : 88,205.33 = 36,689.45 : x
  2. Step 2: Convert to fraction form
    63,919.65/88,205.33 = 36,689.45/x
  3. Step 3: Cross multiply
    63,919.65x = 88,205.33 × 36,689.45
  4. Step 4: Simplify right side
    63,919.65x = 3,236,204,420.29
  5. Step 5: Solve for x
    x = 3,236,204,420.29/63,919.65
  6. Step 6: Final answer
    x = 50,629.26

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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.