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Finding the Fourth Proportional to 10,361.70, 15,543.60 and 3,339.90

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Solution

The fourth proportional to 10,361.70, 15,543.60 and 3,339.90 is: 5,010.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,361.70 : 15,543.60 = 3,339.90 : x
  2. Step 2: Convert to fraction form
    10,361.70/15,543.60 = 3,339.90/x
  3. Step 3: Cross multiply
    10,361.70x = 15,543.60 × 3,339.90
  4. Step 4: Simplify right side
    10,361.70x = 51,914,069.64
  5. Step 5: Solve for x
    x = 51,914,069.64/10,361.70
  6. Step 6: Final answer
    x = 5,010.19

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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.