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Finding the Fourth Proportional to 8,306.79, 12,460.05 and 3,927.39

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Solution

The fourth proportional to 8,306.79, 12,460.05 and 3,927.39 is: 5,891.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,306.79 : 12,460.05 = 3,927.39 : x
  2. Step 2: Convert to fraction form
    8,306.79/12,460.05 = 3,927.39/x
  3. Step 3: Cross multiply
    8,306.79x = 12,460.05 × 3,927.39
  4. Step 4: Simplify right side
    8,306.79x = 48,935,475.77
  5. Step 5: Solve for x
    x = 48,935,475.77/8,306.79
  6. Step 6: Final answer
    x = 5,891.02

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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.