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Finding the Fourth Proportional to 3,675.68, 5,512.32 and 1,726.64

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Solution

The fourth proportional to 3,675.68, 5,512.32 and 1,726.64 is: 2,589.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,675.68 : 5,512.32 = 1,726.64 : x
  2. Step 2: Convert to fraction form
    3,675.68/5,512.32 = 1,726.64/x
  3. Step 3: Cross multiply
    3,675.68x = 5,512.32 × 1,726.64
  4. Step 4: Simplify right side
    3,675.68x = 9,517,792.20
  5. Step 5: Solve for x
    x = 9,517,792.20/3,675.68
  6. Step 6: Final answer
    x = 2,589.40

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1.5x scale

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.