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Finding the Fourth Proportional to 8,616.22, 12,927.69 and 6,965.74

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Solution

The fourth proportional to 8,616.22, 12,927.69 and 6,965.74 is: 10,451.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,616.22 : 12,927.69 = 6,965.74 : x
  2. Step 2: Convert to fraction form
    8,616.22/12,927.69 = 6,965.74/x
  3. Step 3: Cross multiply
    8,616.22x = 12,927.69 × 6,965.74
  4. Step 4: Simplify right side
    8,616.22x = 90,050,927.34
  5. Step 5: Solve for x
    x = 90,050,927.34/8,616.22
  6. Step 6: Final answer
    x = 10,451.33

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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.