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Finding the Fourth Proportional to 22,394.80, 30,904.80 and 12,324

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Solution

The fourth proportional to 22,394.80, 30,904.80 and 12,324 is: 17,007.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,394.80 : 30,904.80 = 12,324 : x
  2. Step 2: Convert to fraction form
    22,394.80/30,904.80 = 12,324/x
  3. Step 3: Cross multiply
    22,394.80x = 30,904.80 × 12,324
  4. Step 4: Simplify right side
    22,394.80x = 380,870,755.20
  5. Step 5: Solve for x
    x = 380,870,755.20/22,394.80
  6. Step 6: Final answer
    x = 17,007.11

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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.