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Finding the Fourth Proportional to 3,649.74, 5,034.63 and 2,531.34

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Solution

The fourth proportional to 3,649.74, 5,034.63 and 2,531.34 is: 3,491.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,649.74 : 5,034.63 = 2,531.34 : x
  2. Step 2: Convert to fraction form
    3,649.74/5,034.63 = 2,531.34/x
  3. Step 3: Cross multiply
    3,649.74x = 5,034.63 × 2,531.34
  4. Step 4: Simplify right side
    3,649.74x = 12,744,360.30
  5. Step 5: Solve for x
    x = 12,744,360.30/3,649.74
  6. Step 6: Final answer
    x = 3,491.85

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1.5x scale

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.