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Finding the Fourth Proportional to 5,647.76, 8,473.80 and 2,725.82

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Solution

The fourth proportional to 5,647.76, 8,473.80 and 2,725.82 is: 4,089.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,647.76 : 8,473.80 = 2,725.82 : x
  2. Step 2: Convert to fraction form
    5,647.76/8,473.80 = 2,725.82/x
  3. Step 3: Cross multiply
    5,647.76x = 8,473.80 × 2,725.82
  4. Step 4: Simplify right side
    5,647.76x = 23,098,053.52
  5. Step 5: Solve for x
    x = 23,098,053.52/5,647.76
  6. Step 6: Final answer
    x = 4,089.77

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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.