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Finding the Fourth Proportional to 15,110.29, 20,850.97 and 8,737.29

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Solution

The fourth proportional to 15,110.29, 20,850.97 and 8,737.29 is: 12,056.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,110.29 : 20,850.97 = 8,737.29 : x
  2. Step 2: Convert to fraction form
    15,110.29/20,850.97 = 8,737.29/x
  3. Step 3: Cross multiply
    15,110.29x = 20,850.97 × 8,737.29
  4. Step 4: Simplify right side
    15,110.29x = 182,181,019.58
  5. Step 5: Solve for x
    x = 182,181,019.58/15,110.29
  6. Step 6: Final answer
    x = 12,056.75

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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.