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Finding the Fourth Proportional to 31,216.59, 43,079.09 and 17,069.49

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Solution

The fourth proportional to 31,216.59, 43,079.09 and 17,069.49 is: 23,556.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,216.59 : 43,079.09 = 17,069.49 : x
  2. Step 2: Convert to fraction form
    31,216.59/43,079.09 = 17,069.49/x
  3. Step 3: Cross multiply
    31,216.59x = 43,079.09 × 17,069.49
  4. Step 4: Simplify right side
    31,216.59x = 735,338,010.62
  5. Step 5: Solve for x
    x = 735,338,010.62/31,216.59
  6. Step 6: Final answer
    x = 23,556.00

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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.