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Finding the Fourth Proportional to 17,762.68, 26,623.77 and 8,979.04

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Solution

The fourth proportional to 17,762.68, 26,623.77 and 8,979.04 is: 13,458.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,762.68 : 26,623.77 = 8,979.04 : x
  2. Step 2: Convert to fraction form
    17,762.68/26,623.77 = 8,979.04/x
  3. Step 3: Cross multiply
    17,762.68x = 26,623.77 × 8,979.04
  4. Step 4: Simplify right side
    17,762.68x = 239,055,895.78
  5. Step 5: Solve for x
    x = 239,055,895.78/17,762.68
  6. Step 6: Final answer
    x = 13,458.32

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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.