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Finding the Fourth Proportional to 68,996.76, 103,408.56 and 29,507.44

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Solution

The fourth proportional to 68,996.76, 103,408.56 and 29,507.44 is: 44,224.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,996.76 : 103,408.56 = 29,507.44 : x
  2. Step 2: Convert to fraction form
    68,996.76/103,408.56 = 29,507.44/x
  3. Step 3: Cross multiply
    68,996.76x = 103,408.56 × 29,507.44
  4. Step 4: Simplify right side
    68,996.76x = 3,051,321,879.69
  5. Step 5: Solve for x
    x = 3,051,321,879.69/68,996.76
  6. Step 6: Final answer
    x = 44,224.13

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1.5x scale

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.