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Finding the Fourth Proportional to 22,699.30, 34,049.11 and 7,908.50

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Solution

The fourth proportional to 22,699.30, 34,049.11 and 7,908.50 is: 11,862.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,699.30 : 34,049.11 = 7,908.50 : x
  2. Step 2: Convert to fraction form
    22,699.30/34,049.11 = 7,908.50/x
  3. Step 3: Cross multiply
    22,699.30x = 34,049.11 × 7,908.50
  4. Step 4: Simplify right side
    22,699.30x = 269,277,386.44
  5. Step 5: Solve for x
    x = 269,277,386.44/22,699.30
  6. Step 6: Final answer
    x = 11,862.81

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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.