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Finding the Fourth Proportional to 11,842.92, 16,333.38 and 8,865.90

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Solution

The fourth proportional to 11,842.92, 16,333.38 and 8,865.90 is: 12,227.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,842.92 : 16,333.38 = 8,865.90 : x
  2. Step 2: Convert to fraction form
    11,842.92/16,333.38 = 8,865.90/x
  3. Step 3: Cross multiply
    11,842.92x = 16,333.38 × 8,865.90
  4. Step 4: Simplify right side
    11,842.92x = 144,810,113.74
  5. Step 5: Solve for x
    x = 144,810,113.74/11,842.92
  6. Step 6: Final answer
    x = 12,227.57

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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.