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Finding the Fourth Proportional to 2,060.96, 3,089.56 and 890.23

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Solution

The fourth proportional to 2,060.96, 3,089.56 and 890.23 is: 1,334.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,060.96 : 3,089.56 = 890.23 : x
  2. Step 2: Convert to fraction form
    2,060.96/3,089.56 = 890.23/x
  3. Step 3: Cross multiply
    2,060.96x = 3,089.56 × 890.23
  4. Step 4: Simplify right side
    2,060.96x = 2,750,425.20
  5. Step 5: Solve for x
    x = 2,750,425.20/2,060.96
  6. Step 6: Final answer
    x = 1,334.54

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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.