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Finding the Fourth Proportional to 17,393.87, 26,068.46 and 7,899.26

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Solution

The fourth proportional to 17,393.87, 26,068.46 and 7,899.26 is: 11,838.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,393.87 : 26,068.46 = 7,899.26 : x
  2. Step 2: Convert to fraction form
    17,393.87/26,068.46 = 7,899.26/x
  3. Step 3: Cross multiply
    17,393.87x = 26,068.46 × 7,899.26
  4. Step 4: Simplify right side
    17,393.87x = 205,921,373.50
  5. Step 5: Solve for x
    x = 205,921,373.50/17,393.87
  6. Step 6: Final answer
    x = 11,838.73

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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.