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Finding the Fourth Proportional to 34,659.28, 51,988.47 and 8,363.89

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Solution

The fourth proportional to 34,659.28, 51,988.47 and 8,363.89 is: 12,545.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,659.28 : 51,988.47 = 8,363.89 : x
  2. Step 2: Convert to fraction form
    34,659.28/51,988.47 = 8,363.89/x
  3. Step 3: Cross multiply
    34,659.28x = 51,988.47 × 8,363.89
  4. Step 4: Simplify right side
    34,659.28x = 434,825,844.35
  5. Step 5: Solve for x
    x = 434,825,844.35/34,659.28
  6. Step 6: Final answer
    x = 12,545.73

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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.