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Finding the Fourth Proportional to 15,332.80, 22,989.24 and 7,324.28

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Solution

The fourth proportional to 15,332.80, 22,989.24 and 7,324.28 is: 10,981.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,332.80 : 22,989.24 = 7,324.28 : x
  2. Step 2: Convert to fraction form
    15,332.80/22,989.24 = 7,324.28/x
  3. Step 3: Cross multiply
    15,332.80x = 22,989.24 × 7,324.28
  4. Step 4: Simplify right side
    15,332.80x = 168,379,630.75
  5. Step 5: Solve for x
    x = 168,379,630.75/15,332.80
  6. Step 6: Final answer
    x = 10,981.66

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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.