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Finding the Fourth Proportional to 3,563.95, 4,917.42 and 2,147.26

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Solution

The fourth proportional to 3,563.95, 4,917.42 and 2,147.26 is: 2,962.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,563.95 : 4,917.42 = 2,147.26 : x
  2. Step 2: Convert to fraction form
    3,563.95/4,917.42 = 2,147.26/x
  3. Step 3: Cross multiply
    3,563.95x = 4,917.42 × 2,147.26
  4. Step 4: Simplify right side
    3,563.95x = 10,558,979.27
  5. Step 5: Solve for x
    x = 10,558,979.27/3,563.95
  6. Step 6: Final answer
    x = 2,962.72

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1.5x scale

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.