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Finding the Fourth Proportional to 8,601.56, 11,861.15 and 6,368.12

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Solution

The fourth proportional to 8,601.56, 11,861.15 and 6,368.12 is: 8,781.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,601.56 : 11,861.15 = 6,368.12 : x
  2. Step 2: Convert to fraction form
    8,601.56/11,861.15 = 6,368.12/x
  3. Step 3: Cross multiply
    8,601.56x = 11,861.15 × 6,368.12
  4. Step 4: Simplify right side
    8,601.56x = 75,533,226.54
  5. Step 5: Solve for x
    x = 75,533,226.54/8,601.56
  6. Step 6: Final answer
    x = 8,781.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.