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Finding the Fourth Proportional to 28,697.41, 43,110.91 and 17,018.29

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Solution

The fourth proportional to 28,697.41, 43,110.91 and 17,018.29 is: 25,565.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,697.41 : 43,110.91 = 17,018.29 : x
  2. Step 2: Convert to fraction form
    28,697.41/43,110.91 = 17,018.29/x
  3. Step 3: Cross multiply
    28,697.41x = 43,110.91 × 17,018.29
  4. Step 4: Simplify right side
    28,697.41x = 733,673,752.99
  5. Step 5: Solve for x
    x = 733,673,752.99/28,697.41
  6. Step 6: Final answer
    x = 25,565.86

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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.