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Finding the Fourth Proportional to 3,052.97, 4,213.12 and 1,655.72

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Solution

The fourth proportional to 3,052.97, 4,213.12 and 1,655.72 is: 2,284.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,052.97 : 4,213.12 = 1,655.72 : x
  2. Step 2: Convert to fraction form
    3,052.97/4,213.12 = 1,655.72/x
  3. Step 3: Cross multiply
    3,052.97x = 4,213.12 × 1,655.72
  4. Step 4: Simplify right side
    3,052.97x = 6,975,717.70
  5. Step 5: Solve for x
    x = 6,975,717.70/3,052.97
  6. Step 6: Final answer
    x = 2,284.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.