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Finding the Fourth Proportional to 17,665.92, 26,479.44 and 11,808

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Solution

The fourth proportional to 17,665.92, 26,479.44 and 11,808 is: 17,699.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,665.92 : 26,479.44 = 11,808 : x
  2. Step 2: Convert to fraction form
    17,665.92/26,479.44 = 11,808/x
  3. Step 3: Cross multiply
    17,665.92x = 26,479.44 × 11,808
  4. Step 4: Simplify right side
    17,665.92x = 312,669,227.52
  5. Step 5: Solve for x
    x = 312,669,227.52/17,665.92
  6. Step 6: Final answer
    x = 17,699.01

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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.