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Finding the Fourth Proportional to 16,232.67, 22,401.09 and 8,780.67

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Solution

The fourth proportional to 16,232.67, 22,401.09 and 8,780.67 is: 12,117.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,232.67 : 22,401.09 = 8,780.67 : x
  2. Step 2: Convert to fraction form
    16,232.67/22,401.09 = 8,780.67/x
  3. Step 3: Cross multiply
    16,232.67x = 22,401.09 × 8,780.67
  4. Step 4: Simplify right side
    16,232.67x = 196,696,578.93
  5. Step 5: Solve for x
    x = 196,696,578.93/16,232.67
  6. Step 6: Final answer
    x = 12,117.33

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Half scale
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Double scale
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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.