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Finding the Fourth Proportional to 17,793.87, 26,690.54 and 5,313.93

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Solution

The fourth proportional to 17,793.87, 26,690.54 and 5,313.93 is: 7,970.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,793.87 : 26,690.54 = 5,313.93 : x
  2. Step 2: Convert to fraction form
    17,793.87/26,690.54 = 5,313.93/x
  3. Step 3: Cross multiply
    17,793.87x = 26,690.54 × 5,313.93
  4. Step 4: Simplify right side
    17,793.87x = 141,831,634.65
  5. Step 5: Solve for x
    x = 141,831,634.65/17,793.87
  6. Step 6: Final answer
    x = 7,970.81

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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.