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Finding the Fourth Proportional to 17,479.14, 26,220.99 and 6,391.05

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Solution

The fourth proportional to 17,479.14, 26,220.99 and 6,391.05 is: 9,587.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,479.14 : 26,220.99 = 6,391.05 : x
  2. Step 2: Convert to fraction form
    17,479.14/26,220.99 = 6,391.05/x
  3. Step 3: Cross multiply
    17,479.14x = 26,220.99 × 6,391.05
  4. Step 4: Simplify right side
    17,479.14x = 167,579,713.30
  5. Step 5: Solve for x
    x = 167,579,713.30/17,479.14
  6. Step 6: Final answer
    x = 9,587.41

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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.