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Finding the Fourth Proportional to 17,950.18, 26,919.06 and 6,860.02

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Solution

The fourth proportional to 17,950.18, 26,919.06 and 6,860.02 is: 10,287.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,950.18 : 26,919.06 = 6,860.02 : x
  2. Step 2: Convert to fraction form
    17,950.18/26,919.06 = 6,860.02/x
  3. Step 3: Cross multiply
    17,950.18x = 26,919.06 × 6,860.02
  4. Step 4: Simplify right side
    17,950.18x = 184,665,289.98
  5. Step 5: Solve for x
    x = 184,665,289.98/17,950.18
  6. Step 6: Final answer
    x = 10,287.66

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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.