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Finding the Fourth Proportional to 28,949.80, 43,351.80 and 23,117.80

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Solution

The fourth proportional to 28,949.80, 43,351.80 and 23,117.80 is: 34,618.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,949.80 : 43,351.80 = 23,117.80 : x
  2. Step 2: Convert to fraction form
    28,949.80/43,351.80 = 23,117.80/x
  3. Step 3: Cross multiply
    28,949.80x = 43,351.80 × 23,117.80
  4. Step 4: Simplify right side
    28,949.80x = 1,002,198,242.04
  5. Step 5: Solve for x
    x = 1,002,198,242.04/28,949.80
  6. Step 6: Final answer
    x = 34,618.49

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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.