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Finding the Fourth Proportional to 62,868.34, 86,759.37 and 36,013.20

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Solution

The fourth proportional to 62,868.34, 86,759.37 and 36,013.20 is: 49,698.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,868.34 : 86,759.37 = 36,013.20 : x
  2. Step 2: Convert to fraction form
    62,868.34/86,759.37 = 36,013.20/x
  3. Step 3: Cross multiply
    62,868.34x = 86,759.37 × 36,013.20
  4. Step 4: Simplify right side
    62,868.34x = 3,124,482,543.68
  5. Step 5: Solve for x
    x = 3,124,482,543.68/62,868.34
  6. Step 6: Final answer
    x = 49,698.82

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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.