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Finding the Fourth Proportional to 17,679.01, 26,518.53 and 4,531.51

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Solution

The fourth proportional to 17,679.01, 26,518.53 and 4,531.51 is: 6,797.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,679.01 : 26,518.53 = 4,531.51 : x
  2. Step 2: Convert to fraction form
    17,679.01/26,518.53 = 4,531.51/x
  3. Step 3: Cross multiply
    17,679.01x = 26,518.53 × 4,531.51
  4. Step 4: Simplify right side
    17,679.01x = 120,168,983.88
  5. Step 5: Solve for x
    x = 120,168,983.88/17,679.01
  6. Step 6: Final answer
    x = 6,797.27

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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.