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Finding the Fourth Proportional to 8,605.38, 11,876.58 and 5,068.56

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Solution

The fourth proportional to 8,605.38, 11,876.58 and 5,068.56 is: 6,995.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,605.38 : 11,876.58 = 5,068.56 : x
  2. Step 2: Convert to fraction form
    8,605.38/11,876.58 = 5,068.56/x
  3. Step 3: Cross multiply
    8,605.38x = 11,876.58 × 5,068.56
  4. Step 4: Simplify right side
    8,605.38x = 60,197,158.32
  5. Step 5: Solve for x
    x = 60,197,158.32/8,605.38
  6. Step 6: Final answer
    x = 6,995.29

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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.