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Finding the Fourth Proportional to 17,211.75, 25,821.96 and 4,899.75

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Solution

The fourth proportional to 17,211.75, 25,821.96 and 4,899.75 is: 7,350.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,211.75 : 25,821.96 = 4,899.75 : x
  2. Step 2: Convert to fraction form
    17,211.75/25,821.96 = 4,899.75/x
  3. Step 3: Cross multiply
    17,211.75x = 25,821.96 × 4,899.75
  4. Step 4: Simplify right side
    17,211.75x = 126,521,148.51
  5. Step 5: Solve for x
    x = 126,521,148.51/17,211.75
  6. Step 6: Final answer
    x = 7,350.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.