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Finding the Fourth Proportional to 5,778.15, 8,662.02 and 2,079.51

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Solution

The fourth proportional to 5,778.15, 8,662.02 and 2,079.51 is: 3,117.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,778.15 : 8,662.02 = 2,079.51 : x
  2. Step 2: Convert to fraction form
    5,778.15/8,662.02 = 2,079.51/x
  3. Step 3: Cross multiply
    5,778.15x = 8,662.02 × 2,079.51
  4. Step 4: Simplify right side
    5,778.15x = 18,012,757.21
  5. Step 5: Solve for x
    x = 18,012,757.21/5,778.15
  6. Step 6: Final answer
    x = 3,117.39

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1.5x scale

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.