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Finding the Fourth Proportional to 5,716.22, 7,890.04 and 3,326.74

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Solution

The fourth proportional to 5,716.22, 7,890.04 and 3,326.74 is: 4,591.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,716.22 : 7,890.04 = 3,326.74 : x
  2. Step 2: Convert to fraction form
    5,716.22/7,890.04 = 3,326.74/x
  3. Step 3: Cross multiply
    5,716.22x = 7,890.04 × 3,326.74
  4. Step 4: Simplify right side
    5,716.22x = 26,248,111.67
  5. Step 5: Solve for x
    x = 26,248,111.67/5,716.22
  6. Step 6: Final answer
    x = 4,591.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.