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Finding the Fourth Proportional to 2,297.17, 3,447.15 and 836.20

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Solution

The fourth proportional to 2,297.17, 3,447.15 and 836.20 is: 1,254.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,297.17 : 3,447.15 = 836.20 : x
  2. Step 2: Convert to fraction form
    2,297.17/3,447.15 = 836.20/x
  3. Step 3: Cross multiply
    2,297.17x = 3,447.15 × 836.20
  4. Step 4: Simplify right side
    2,297.17x = 2,882,506.83
  5. Step 5: Solve for x
    x = 2,882,506.83/2,297.17
  6. Step 6: Final answer
    x = 1,254.81

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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.