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Finding the Fourth Proportional to 5,586, 7,708.92 and 3,102

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Solution

The fourth proportional to 5,586, 7,708.92 and 3,102 is: 4,280.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,586 : 7,708.92 = 3,102 : x
  2. Step 2: Convert to fraction form
    5,586/7,708.92 = 3,102/x
  3. Step 3: Cross multiply
    5,586x = 7,708.92 × 3,102
  4. Step 4: Simplify right side
    5,586x = 23,913,069.84
  5. Step 5: Solve for x
    x = 23,913,069.84/5,586
  6. Step 6: Final answer
    x = 4,280.89

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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.