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Finding the Fourth Proportional to 2,451.92, 3,677.37 and 808.22

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Solution

The fourth proportional to 2,451.92, 3,677.37 and 808.22 is: 1,212.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,451.92 : 3,677.37 = 808.22 : x
  2. Step 2: Convert to fraction form
    2,451.92/3,677.37 = 808.22/x
  3. Step 3: Cross multiply
    2,451.92x = 3,677.37 × 808.22
  4. Step 4: Simplify right side
    2,451.92x = 2,972,105.59
  5. Step 5: Solve for x
    x = 2,972,105.59/2,451.92
  6. Step 6: Final answer
    x = 1,212.16

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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.