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Finding the Fourth Proportional to 17,939.19, 26,908.81 and 8,577.01

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Solution

The fourth proportional to 17,939.19, 26,908.81 and 8,577.01 is: 12,865.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,939.19 : 26,908.81 = 8,577.01 : x
  2. Step 2: Convert to fraction form
    17,939.19/26,908.81 = 8,577.01/x
  3. Step 3: Cross multiply
    17,939.19x = 26,908.81 × 8,577.01
  4. Step 4: Simplify right side
    17,939.19x = 230,797,043.74
  5. Step 5: Solve for x
    x = 230,797,043.74/17,939.19
  6. Step 6: Final answer
    x = 12,865.52

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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.