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Finding the Fourth Proportional to 71,028.83, 106,538.92 and 26,651.86

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Solution

The fourth proportional to 71,028.83, 106,538.92 and 26,651.86 is: 39,976.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,028.83 : 106,538.92 = 26,651.86 : x
  2. Step 2: Convert to fraction form
    71,028.83/106,538.92 = 26,651.86/x
  3. Step 3: Cross multiply
    71,028.83x = 106,538.92 × 26,651.86
  4. Step 4: Simplify right side
    71,028.83x = 2,839,460,047.41
  5. Step 5: Solve for x
    x = 2,839,460,047.41/71,028.83
  6. Step 6: Final answer
    x = 39,976.16

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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.