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Finding the Fourth Proportional to 10,361.80, 15,543.42 and 2,966.32

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Solution

The fourth proportional to 10,361.80, 15,543.42 and 2,966.32 is: 4,449.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,361.80 : 15,543.42 = 2,966.32 : x
  2. Step 2: Convert to fraction form
    10,361.80/15,543.42 = 2,966.32/x
  3. Step 3: Cross multiply
    10,361.80x = 15,543.42 × 2,966.32
  4. Step 4: Simplify right side
    10,361.80x = 46,106,757.61
  5. Step 5: Solve for x
    x = 46,106,757.61/10,361.80
  6. Step 6: Final answer
    x = 4,449.69

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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.