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Finding the Fourth Proportional to 8,554.86, 12,832.28 and 6,229.66

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Solution

The fourth proportional to 8,554.86, 12,832.28 and 6,229.66 is: 9,344.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,554.86 : 12,832.28 = 6,229.66 : x
  2. Step 2: Convert to fraction form
    8,554.86/12,832.28 = 6,229.66/x
  3. Step 3: Cross multiply
    8,554.86x = 12,832.28 × 6,229.66
  4. Step 4: Simplify right side
    8,554.86x = 79,940,741.42
  5. Step 5: Solve for x
    x = 79,940,741.42/8,554.86
  6. Step 6: Final answer
    x = 9,344.48

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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.