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Finding the Fourth Proportional to 17,919.83, 26,745.49 and 17,624.21

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Solution

The fourth proportional to 17,919.83, 26,745.49 and 17,624.21 is: 26,304.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,919.83 : 26,745.49 = 17,624.21 : x
  2. Step 2: Convert to fraction form
    17,919.83/26,745.49 = 17,624.21/x
  3. Step 3: Cross multiply
    17,919.83x = 26,745.49 × 17,624.21
  4. Step 4: Simplify right side
    17,919.83x = 471,368,095.84
  5. Step 5: Solve for x
    x = 471,368,095.84/17,919.83
  6. Step 6: Final answer
    x = 26,304.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.