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Finding the Fourth Proportional to 2,615.22, 3,926.16 and 2,247.39

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Solution

The fourth proportional to 2,615.22, 3,926.16 and 2,247.39 is: 3,373.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,615.22 : 3,926.16 = 2,247.39 : x
  2. Step 2: Convert to fraction form
    2,615.22/3,926.16 = 2,247.39/x
  3. Step 3: Cross multiply
    2,615.22x = 3,926.16 × 2,247.39
  4. Step 4: Simplify right side
    2,615.22x = 8,823,612.72
  5. Step 5: Solve for x
    x = 8,823,612.72/2,615.22
  6. Step 6: Final answer
    x = 3,373.95

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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.