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Finding the Fourth Proportional to 32,686.80, 49,013.73 and 15,168.93

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Solution

The fourth proportional to 32,686.80, 49,013.73 and 15,168.93 is: 22,745.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,686.80 : 49,013.73 = 15,168.93 : x
  2. Step 2: Convert to fraction form
    32,686.80/49,013.73 = 15,168.93/x
  3. Step 3: Cross multiply
    32,686.80x = 49,013.73 × 15,168.93
  4. Step 4: Simplify right side
    32,686.80x = 743,485,839.41
  5. Step 5: Solve for x
    x = 743,485,839.41/32,686.80
  6. Step 6: Final answer
    x = 22,745.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.