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Finding the Fourth Proportional to 5,778.74, 8,684.52 and 5,631.12

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Solution

The fourth proportional to 5,778.74, 8,684.52 and 5,631.12 is: 8,462.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,778.74 : 8,684.52 = 5,631.12 : x
  2. Step 2: Convert to fraction form
    5,778.74/8,684.52 = 5,631.12/x
  3. Step 3: Cross multiply
    5,778.74x = 8,684.52 × 5,631.12
  4. Step 4: Simplify right side
    5,778.74x = 48,903,553.15
  5. Step 5: Solve for x
    x = 48,903,553.15/5,778.74
  6. Step 6: Final answer
    x = 8,462.66

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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.