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Finding the Fourth Proportional to 10,353.67, 15,531.02 and 2,959.22

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Solution

The fourth proportional to 10,353.67, 15,531.02 and 2,959.22 is: 4,438.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,353.67 : 15,531.02 = 2,959.22 : x
  2. Step 2: Convert to fraction form
    10,353.67/15,531.02 = 2,959.22/x
  3. Step 3: Cross multiply
    10,353.67x = 15,531.02 × 2,959.22
  4. Step 4: Simplify right side
    10,353.67x = 45,959,705.00
  5. Step 5: Solve for x
    x = 45,959,705.00/10,353.67
  6. Step 6: Final answer
    x = 4,438.98

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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.