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Finding the Fourth Proportional to 17,739.52, 26,625.74 and 8,980.64

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Solution

The fourth proportional to 17,739.52, 26,625.74 and 8,980.64 is: 13,479.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,739.52 : 26,625.74 = 8,980.64 : x
  2. Step 2: Convert to fraction form
    17,739.52/26,625.74 = 8,980.64/x
  3. Step 3: Cross multiply
    17,739.52x = 26,625.74 × 8,980.64
  4. Step 4: Simplify right side
    17,739.52x = 239,116,185.67
  5. Step 5: Solve for x
    x = 239,116,185.67/17,739.52
  6. Step 6: Final answer
    x = 13,479.29

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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.