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Finding the Fourth Proportional to 5,778.53, 8,662.51 and 2,079.91

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Solution

The fourth proportional to 5,778.53, 8,662.51 and 2,079.91 is: 3,117.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,778.53 : 8,662.51 = 2,079.91 : x
  2. Step 2: Convert to fraction form
    5,778.53/8,662.51 = 2,079.91/x
  3. Step 3: Cross multiply
    5,778.53x = 8,662.51 × 2,079.91
  4. Step 4: Simplify right side
    5,778.53x = 18,017,214.32
  5. Step 5: Solve for x
    x = 18,017,214.32/5,778.53
  6. Step 6: Final answer
    x = 3,117.96

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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.