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Finding the Fourth Proportional to 8,626.61, 12,958.34 and 6,177.17

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Solution

The fourth proportional to 8,626.61, 12,958.34 and 6,177.17 is: 9,278.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,626.61 : 12,958.34 = 6,177.17 : x
  2. Step 2: Convert to fraction form
    8,626.61/12,958.34 = 6,177.17/x
  3. Step 3: Cross multiply
    8,626.61x = 12,958.34 × 6,177.17
  4. Step 4: Simplify right side
    8,626.61x = 80,045,773.42
  5. Step 5: Solve for x
    x = 80,045,773.42/8,626.61
  6. Step 6: Final answer
    x = 9,278.94

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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.