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Finding the Fourth Proportional to 5,778.90, 8,656.20 and 5,778.90

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Solution

The fourth proportional to 5,778.90, 8,656.20 and 5,778.90 is: 8,656.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,778.90 : 8,656.20 = 5,778.90 : x
  2. Step 2: Convert to fraction form
    5,778.90/8,656.20 = 5,778.90/x
  3. Step 3: Cross multiply
    5,778.90x = 8,656.20 × 5,778.90
  4. Step 4: Simplify right side
    5,778.90x = 50,023,314.18
  5. Step 5: Solve for x
    x = 50,023,314.18/5,778.90
  6. Step 6: Final answer
    x = 8,656.20

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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.