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Finding the Fourth Proportional to 2,616.64, 3,610.68 and 1,568.56

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Solution

The fourth proportional to 2,616.64, 3,610.68 and 1,568.56 is: 2,164.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,616.64 : 3,610.68 = 1,568.56 : x
  2. Step 2: Convert to fraction form
    2,616.64/3,610.68 = 1,568.56/x
  3. Step 3: Cross multiply
    2,616.64x = 3,610.68 × 1,568.56
  4. Step 4: Simplify right side
    2,616.64x = 5,663,568.22
  5. Step 5: Solve for x
    x = 5,663,568.22/2,616.64
  6. Step 6: Final answer
    x = 2,164.44

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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.