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Finding the Fourth Proportional to 31,266.86, 43,147.84 and 17,119.70

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Solution

The fourth proportional to 31,266.86, 43,147.84 and 17,119.70 is: 23,624.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,266.86 : 43,147.84 = 17,119.70 : x
  2. Step 2: Convert to fraction form
    31,266.86/43,147.84 = 17,119.70/x
  3. Step 3: Cross multiply
    31,266.86x = 43,147.84 × 17,119.70
  4. Step 4: Simplify right side
    31,266.86x = 738,678,254.52
  5. Step 5: Solve for x
    x = 738,678,254.52/31,266.86
  6. Step 6: Final answer
    x = 23,624.96

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.