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Finding the Fourth Proportional to 16,453.53, 22,705.92 and 9,379.80

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Solution

The fourth proportional to 16,453.53, 22,705.92 and 9,379.80 is: 12,944.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,453.53 : 22,705.92 = 9,379.80 : x
  2. Step 2: Convert to fraction form
    16,453.53/22,705.92 = 9,379.80/x
  3. Step 3: Cross multiply
    16,453.53x = 22,705.92 × 9,379.80
  4. Step 4: Simplify right side
    16,453.53x = 212,976,988.42
  5. Step 5: Solve for x
    x = 212,976,988.42/16,453.53
  6. Step 6: Final answer
    x = 12,944.15

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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.