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Finding the Fourth Proportional to 5,577.65, 8,358 and 3,816.44

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Solution

The fourth proportional to 5,577.65, 8,358 and 3,816.44 is: 5,718.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,577.65 : 8,358 = 3,816.44 : x
  2. Step 2: Convert to fraction form
    5,577.65/8,358 = 3,816.44/x
  3. Step 3: Cross multiply
    5,577.65x = 8,358 × 3,816.44
  4. Step 4: Simplify right side
    5,577.65x = 31,897,805.52
  5. Step 5: Solve for x
    x = 31,897,805.52/5,577.65
  6. Step 6: Final answer
    x = 5,718.86

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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.