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Finding the Fourth Proportional to 3,561.58, 5,345.81 and 1,713.97

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Solution

The fourth proportional to 3,561.58, 5,345.81 and 1,713.97 is: 2,572.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,561.58 : 5,345.81 = 1,713.97 : x
  2. Step 2: Convert to fraction form
    3,561.58/5,345.81 = 1,713.97/x
  3. Step 3: Cross multiply
    3,561.58x = 5,345.81 × 1,713.97
  4. Step 4: Simplify right side
    3,561.58x = 9,162,557.97
  5. Step 5: Solve for x
    x = 9,162,557.97/3,561.58
  6. Step 6: Final answer
    x = 2,572.61

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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.