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Finding the Fourth Proportional to 3,001.92, 4,502.56 and 810.88

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Solution

The fourth proportional to 3,001.92, 4,502.56 and 810.88 is: 1,216.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,001.92 : 4,502.56 = 810.88 : x
  2. Step 2: Convert to fraction form
    3,001.92/4,502.56 = 810.88/x
  3. Step 3: Cross multiply
    3,001.92x = 4,502.56 × 810.88
  4. Step 4: Simplify right side
    3,001.92x = 3,651,035.85
  5. Step 5: Solve for x
    x = 3,651,035.85/3,001.92
  6. Step 6: Final answer
    x = 1,216.23

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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.