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Finding the Fourth Proportional to 2,543.90, 3,510.54 and 1,481.88

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Solution

The fourth proportional to 2,543.90, 3,510.54 and 1,481.88 is: 2,044.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,543.90 : 3,510.54 = 1,481.88 : x
  2. Step 2: Convert to fraction form
    2,543.90/3,510.54 = 1,481.88/x
  3. Step 3: Cross multiply
    2,543.90x = 3,510.54 × 1,481.88
  4. Step 4: Simplify right side
    2,543.90x = 5,202,199.02
  5. Step 5: Solve for x
    x = 5,202,199.02/2,543.90
  6. Step 6: Final answer
    x = 2,044.97

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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.