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Finding the Fourth Proportional to 17,751.14, 24,479.07 and 13,770.80

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Solution

The fourth proportional to 17,751.14, 24,479.07 and 13,770.80 is: 18,990.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,751.14 : 24,479.07 = 13,770.80 : x
  2. Step 2: Convert to fraction form
    17,751.14/24,479.07 = 13,770.80/x
  3. Step 3: Cross multiply
    17,751.14x = 24,479.07 × 13,770.80
  4. Step 4: Simplify right side
    17,751.14x = 337,096,377.16
  5. Step 5: Solve for x
    x = 337,096,377.16/17,751.14
  6. Step 6: Final answer
    x = 18,990.13

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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.