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Finding the Fourth Proportional to 27,899.33, 38,486.84 and 17,817.17

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Solution

The fourth proportional to 27,899.33, 38,486.84 and 17,817.17 is: 24,578.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,899.33 : 38,486.84 = 17,817.17 : x
  2. Step 2: Convert to fraction form
    27,899.33/38,486.84 = 17,817.17/x
  3. Step 3: Cross multiply
    27,899.33x = 38,486.84 × 17,817.17
  4. Step 4: Simplify right side
    27,899.33x = 685,726,289.52
  5. Step 5: Solve for x
    x = 685,726,289.52/27,899.33
  6. Step 6: Final answer
    x = 24,578.60

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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.