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Finding the Fourth Proportional to 2,641.14, 3,641.22 and 2,266.50

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Solution

The fourth proportional to 2,641.14, 3,641.22 and 2,266.50 is: 3,124.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,641.14 : 3,641.22 = 2,266.50 : x
  2. Step 2: Convert to fraction form
    2,641.14/3,641.22 = 2,266.50/x
  3. Step 3: Cross multiply
    2,641.14x = 3,641.22 × 2,266.50
  4. Step 4: Simplify right side
    2,641.14x = 8,252,825.13
  5. Step 5: Solve for x
    x = 8,252,825.13/2,641.14
  6. Step 6: Final answer
    x = 3,124.72

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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.