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Finding the Fourth Proportional to 16,008.32, 22,091.84 and 8,934.40

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Solution

The fourth proportional to 16,008.32, 22,091.84 and 8,934.40 is: 12,329.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,008.32 : 22,091.84 = 8,934.40 : x
  2. Step 2: Convert to fraction form
    16,008.32/22,091.84 = 8,934.40/x
  3. Step 3: Cross multiply
    16,008.32x = 22,091.84 × 8,934.40
  4. Step 4: Simplify right side
    16,008.32x = 197,377,335.30
  5. Step 5: Solve for x
    x = 197,377,335.30/16,008.32
  6. Step 6: Final answer
    x = 12,329.67

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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.