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Finding the Fourth Proportional to 16,486.50, 22,750.68 and 9,679.59

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Solution

The fourth proportional to 16,486.50, 22,750.68 and 9,679.59 is: 13,357.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,486.50 : 22,750.68 = 9,679.59 : x
  2. Step 2: Convert to fraction form
    16,486.50/22,750.68 = 9,679.59/x
  3. Step 3: Cross multiply
    16,486.50x = 22,750.68 × 9,679.59
  4. Step 4: Simplify right side
    16,486.50x = 220,217,254.62
  5. Step 5: Solve for x
    x = 220,217,254.62/16,486.50
  6. Step 6: Final answer
    x = 13,357.43

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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.