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Finding the Fourth Proportional to 1,691.88, 2,525.57 and 1,462.25

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Solution

The fourth proportional to 1,691.88, 2,525.57 and 1,462.25 is: 2,182.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,691.88 : 2,525.57 = 1,462.25 : x
  2. Step 2: Convert to fraction form
    1,691.88/2,525.57 = 1,462.25/x
  3. Step 3: Cross multiply
    1,691.88x = 2,525.57 × 1,462.25
  4. Step 4: Simplify right side
    1,691.88x = 3,692,994.79
  5. Step 5: Solve for x
    x = 3,692,994.79/1,691.88
  6. Step 6: Final answer
    x = 2,182.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.