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Finding the Fourth Proportional to 8,501.62, 12,731.53 and 5,861.73

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Solution

The fourth proportional to 8,501.62, 12,731.53 and 5,861.73 is: 8,778.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,501.62 : 12,731.53 = 5,861.73 : x
  2. Step 2: Convert to fraction form
    8,501.62/12,731.53 = 5,861.73/x
  3. Step 3: Cross multiply
    8,501.62x = 12,731.53 × 5,861.73
  4. Step 4: Simplify right side
    8,501.62x = 74,628,781.72
  5. Step 5: Solve for x
    x = 74,628,781.72/8,501.62
  6. Step 6: Final answer
    x = 8,778.18

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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.