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Finding the Fourth Proportional to 5,115.62, 7,028.97 and 4,065.86

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Solution

The fourth proportional to 5,115.62, 7,028.97 and 4,065.86 is: 5,586.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,115.62 : 7,028.97 = 4,065.86 : x
  2. Step 2: Convert to fraction form
    5,115.62/7,028.97 = 4,065.86/x
  3. Step 3: Cross multiply
    5,115.62x = 7,028.97 × 4,065.86
  4. Step 4: Simplify right side
    5,115.62x = 28,578,810.29
  5. Step 5: Solve for x
    x = 28,578,810.29/5,115.62
  6. Step 6: Final answer
    x = 5,586.58

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These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.