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Finding the Fourth Proportional to 3,563.61, 4,917.52 and 2,147.01

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Solution

The fourth proportional to 3,563.61, 4,917.52 and 2,147.01 is: 2,962.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,563.61 : 4,917.52 = 2,147.01 : x
  2. Step 2: Convert to fraction form
    3,563.61/4,917.52 = 2,147.01/x
  3. Step 3: Cross multiply
    3,563.61x = 4,917.52 × 2,147.01
  4. Step 4: Simplify right side
    3,563.61x = 10,557,964.62
  5. Step 5: Solve for x
    x = 10,557,964.62/3,563.61
  6. Step 6: Final answer
    x = 2,962.72

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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.