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Finding the Fourth Proportional to 22,903.74, 34,371 and 8,112.60

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Solution

The fourth proportional to 22,903.74, 34,371 and 8,112.60 is: 12,174.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,903.74 : 34,371 = 8,112.60 : x
  2. Step 2: Convert to fraction form
    22,903.74/34,371 = 8,112.60/x
  3. Step 3: Cross multiply
    22,903.74x = 34,371 × 8,112.60
  4. Step 4: Simplify right side
    22,903.74x = 278,838,174.60
  5. Step 5: Solve for x
    x = 278,838,174.60/22,903.74
  6. Step 6: Final answer
    x = 12,174.35

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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.