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Finding the Fourth Proportional to 16,609.92, 22,931.02 and 11,512.85

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Solution

The fourth proportional to 16,609.92, 22,931.02 and 11,512.85 is: 15,894.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,609.92 : 22,931.02 = 11,512.85 : x
  2. Step 2: Convert to fraction form
    16,609.92/22,931.02 = 11,512.85/x
  3. Step 3: Cross multiply
    16,609.92x = 22,931.02 × 11,512.85
  4. Step 4: Simplify right side
    16,609.92x = 264,001,278.95
  5. Step 5: Solve for x
    x = 264,001,278.95/16,609.92
  6. Step 6: Final answer
    x = 15,894.19

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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.