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Finding the Fourth Proportional to 15,797.97, 23,680.12 and 11,890.29

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Solution

The fourth proportional to 15,797.97, 23,680.12 and 11,890.29 is: 17,822.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,797.97 : 23,680.12 = 11,890.29 : x
  2. Step 2: Convert to fraction form
    15,797.97/23,680.12 = 11,890.29/x
  3. Step 3: Cross multiply
    15,797.97x = 23,680.12 × 11,890.29
  4. Step 4: Simplify right side
    15,797.97x = 281,563,434.58
  5. Step 5: Solve for x
    x = 281,563,434.58/15,797.97
  6. Step 6: Final answer
    x = 17,822.76

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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.