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Finding the Fourth Proportional to 2,917.74, 4,372.48 and 2,094.18

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Solution

The fourth proportional to 2,917.74, 4,372.48 and 2,094.18 is: 3,138.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,917.74 : 4,372.48 = 2,094.18 : x
  2. Step 2: Convert to fraction form
    2,917.74/4,372.48 = 2,094.18/x
  3. Step 3: Cross multiply
    2,917.74x = 4,372.48 × 2,094.18
  4. Step 4: Simplify right side
    2,917.74x = 9,156,760.17
  5. Step 5: Solve for x
    x = 9,156,760.17/2,917.74
  6. Step 6: Final answer
    x = 3,138.31

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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.