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Finding the Fourth Proportional to 3,082.52, 4,252.80 and 1,755.88

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Solution

The fourth proportional to 3,082.52, 4,252.80 and 1,755.88 is: 2,422.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,082.52 : 4,252.80 = 1,755.88 : x
  2. Step 2: Convert to fraction form
    3,082.52/4,252.80 = 1,755.88/x
  3. Step 3: Cross multiply
    3,082.52x = 4,252.80 × 1,755.88
  4. Step 4: Simplify right side
    3,082.52x = 7,467,402.42
  5. Step 5: Solve for x
    x = 7,467,402.42/3,082.52
  6. Step 6: Final answer
    x = 2,422.50

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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.