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Finding the Fourth Proportional to 5,180.64, 7,766.62 and 2,058.68

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Solution

The fourth proportional to 5,180.64, 7,766.62 and 2,058.68 is: 3,086.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,180.64 : 7,766.62 = 2,058.68 : x
  2. Step 2: Convert to fraction form
    5,180.64/7,766.62 = 2,058.68/x
  3. Step 3: Cross multiply
    5,180.64x = 7,766.62 × 2,058.68
  4. Step 4: Simplify right side
    5,180.64x = 15,988,985.26
  5. Step 5: Solve for x
    x = 15,988,985.26/5,180.64
  6. Step 6: Final answer
    x = 3,086.30

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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.