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Finding the Fourth Proportional to 2,301.22, 3,453.24 and 915.22

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Solution

The fourth proportional to 2,301.22, 3,453.24 and 915.22 is: 1,373.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,301.22 : 3,453.24 = 915.22 : x
  2. Step 2: Convert to fraction form
    2,301.22/3,453.24 = 915.22/x
  3. Step 3: Cross multiply
    2,301.22x = 3,453.24 × 915.22
  4. Step 4: Simplify right side
    2,301.22x = 3,160,474.31
  5. Step 5: Solve for x
    x = 3,160,474.31/2,301.22
  6. Step 6: Final answer
    x = 1,373.39

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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.