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Finding the Fourth Proportional to 2,041.70, 3,062.55 and 808.48

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Solution

The fourth proportional to 2,041.70, 3,062.55 and 808.48 is: 1,212.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,041.70 : 3,062.55 = 808.48 : x
  2. Step 2: Convert to fraction form
    2,041.70/3,062.55 = 808.48/x
  3. Step 3: Cross multiply
    2,041.70x = 3,062.55 × 808.48
  4. Step 4: Simplify right side
    2,041.70x = 2,475,995.11
  5. Step 5: Solve for x
    x = 2,475,995.11/2,041.70
  6. Step 6: Final answer
    x = 1,212.71

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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.