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Finding the Fourth Proportional to 7,876.74, 10,869.96 and 4,340.07

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Solution

The fourth proportional to 7,876.74, 10,869.96 and 4,340.07 is: 5,989.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,876.74 : 10,869.96 = 4,340.07 : x
  2. Step 2: Convert to fraction form
    7,876.74/10,869.96 = 4,340.07/x
  3. Step 3: Cross multiply
    7,876.74x = 10,869.96 × 4,340.07
  4. Step 4: Simplify right side
    7,876.74x = 47,176,387.30
  5. Step 5: Solve for x
    x = 47,176,387.30/7,876.74
  6. Step 6: Final answer
    x = 5,989.33

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.