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Finding the Fourth Proportional to 12,244.61, 16,894.62 and 7,766.73

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Solution

The fourth proportional to 12,244.61, 16,894.62 and 7,766.73 is: 10,716.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,244.61 : 16,894.62 = 7,766.73 : x
  2. Step 2: Convert to fraction form
    12,244.61/16,894.62 = 7,766.73/x
  3. Step 3: Cross multiply
    12,244.61x = 16,894.62 × 7,766.73
  4. Step 4: Simplify right side
    12,244.61x = 131,215,913.16
  5. Step 5: Solve for x
    x = 131,215,913.16/12,244.61
  6. Step 6: Final answer
    x = 10,716.22

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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.