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Finding the Fourth Proportional to 2,060.74, 3,091.36 and 744.28

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Solution

The fourth proportional to 2,060.74, 3,091.36 and 744.28 is: 1,116.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,060.74 : 3,091.36 = 744.28 : x
  2. Step 2: Convert to fraction form
    2,060.74/3,091.36 = 744.28/x
  3. Step 3: Cross multiply
    2,060.74x = 3,091.36 × 744.28
  4. Step 4: Simplify right side
    2,060.74x = 2,300,837.42
  5. Step 5: Solve for x
    x = 2,300,837.42/2,060.74
  6. Step 6: Final answer
    x = 1,116.51

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Double scale
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Similar ratio
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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.