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Finding the Fourth Proportional to 16,310.75, 22,508.84 and 8,858.75

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Solution

The fourth proportional to 16,310.75, 22,508.84 and 8,858.75 is: 12,225.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,310.75 : 22,508.84 = 8,858.75 : x
  2. Step 2: Convert to fraction form
    16,310.75/22,508.84 = 8,858.75/x
  3. Step 3: Cross multiply
    16,310.75x = 22,508.84 × 8,858.75
  4. Step 4: Simplify right side
    16,310.75x = 199,400,142.06
  5. Step 5: Solve for x
    x = 199,400,142.06/16,310.75
  6. Step 6: Final answer
    x = 12,225.08

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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.