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Finding the Fourth Proportional to 73,165.01, 109,735.07 and 20,562.21

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Solution

The fourth proportional to 73,165.01, 109,735.07 and 20,562.21 is: 30,839.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,165.01 : 109,735.07 = 20,562.21 : x
  2. Step 2: Convert to fraction form
    73,165.01/109,735.07 = 20,562.21/x
  3. Step 3: Cross multiply
    73,165.01x = 109,735.07 × 20,562.21
  4. Step 4: Simplify right side
    73,165.01x = 2,256,395,450.89
  5. Step 5: Solve for x
    x = 2,256,395,450.89/73,165.01
  6. Step 6: Final answer
    x = 30,839.82

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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.