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Finding the Fourth Proportional to 17,919.97, 26,883.20 and 7,384.13

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Solution

The fourth proportional to 17,919.97, 26,883.20 and 7,384.13 is: 11,077.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,919.97 : 26,883.20 = 7,384.13 : x
  2. Step 2: Convert to fraction form
    17,919.97/26,883.20 = 7,384.13/x
  3. Step 3: Cross multiply
    17,919.97x = 26,883.20 × 7,384.13
  4. Step 4: Simplify right side
    17,919.97x = 198,509,006.70
  5. Step 5: Solve for x
    x = 198,509,006.70/17,919.97
  6. Step 6: Final answer
    x = 11,077.53

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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.