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Finding the Fourth Proportional to 6,604.84, 9,115.61 and 4,087.76

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Solution

The fourth proportional to 6,604.84, 9,115.61 and 4,087.76 is: 5,641.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,604.84 : 9,115.61 = 4,087.76 : x
  2. Step 2: Convert to fraction form
    6,604.84/9,115.61 = 4,087.76/x
  3. Step 3: Cross multiply
    6,604.84x = 9,115.61 × 4,087.76
  4. Step 4: Simplify right side
    6,604.84x = 37,262,420.04
  5. Step 5: Solve for x
    x = 37,262,420.04/6,604.84
  6. Step 6: Final answer
    x = 5,641.69

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