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Finding the Fourth Proportional to 16,486.78, 22,751.82 and 8,933.12

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Solution

The fourth proportional to 16,486.78, 22,751.82 and 8,933.12 is: 12,327.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,486.78 : 22,751.82 = 8,933.12 : x
  2. Step 2: Convert to fraction form
    16,486.78/22,751.82 = 8,933.12/x
  3. Step 3: Cross multiply
    16,486.78x = 22,751.82 × 8,933.12
  4. Step 4: Simplify right side
    16,486.78x = 203,244,738.28
  5. Step 5: Solve for x
    x = 203,244,738.28/16,486.78
  6. Step 6: Final answer
    x = 12,327.74

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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.