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Finding the Fourth Proportional to 1,755.56, 2,422.02 and 1,092.20

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Solution

The fourth proportional to 1,755.56, 2,422.02 and 1,092.20 is: 1,506.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,755.56 : 2,422.02 = 1,092.20 : x
  2. Step 2: Convert to fraction form
    1,755.56/2,422.02 = 1,092.20/x
  3. Step 3: Cross multiply
    1,755.56x = 2,422.02 × 1,092.20
  4. Step 4: Simplify right side
    1,755.56x = 2,645,330.24
  5. Step 5: Solve for x
    x = 2,645,330.24/1,755.56
  6. Step 6: Final answer
    x = 1,506.83

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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.