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Finding the Fourth Proportional to 5,877.76, 8,818.10 and 2,917.59

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Solution

The fourth proportional to 5,877.76, 8,818.10 and 2,917.59 is: 4,377.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,877.76 : 8,818.10 = 2,917.59 : x
  2. Step 2: Convert to fraction form
    5,877.76/8,818.10 = 2,917.59/x
  3. Step 3: Cross multiply
    5,877.76x = 8,818.10 × 2,917.59
  4. Step 4: Simplify right side
    5,877.76x = 25,727,585.79
  5. Step 5: Solve for x
    x = 25,727,585.79/5,877.76
  6. Step 6: Final answer
    x = 4,377.11

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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.