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Finding the Fourth Proportional to 17,891.77, 26,838.38 and 4,565.11

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Solution

The fourth proportional to 17,891.77, 26,838.38 and 4,565.11 is: 6,847.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,891.77 : 26,838.38 = 4,565.11 : x
  2. Step 2: Convert to fraction form
    17,891.77/26,838.38 = 4,565.11/x
  3. Step 3: Cross multiply
    17,891.77x = 26,838.38 × 4,565.11
  4. Step 4: Simplify right side
    17,891.77x = 122,520,156.92
  5. Step 5: Solve for x
    x = 122,520,156.92/17,891.77
  6. Step 6: Final answer
    x = 6,847.85

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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.