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Finding the Fourth Proportional to 73,040.72, 100,796.12 and 39,506.64

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Solution

The fourth proportional to 73,040.72, 100,796.12 and 39,506.64 is: 54,519.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,040.72 : 100,796.12 = 39,506.64 : x
  2. Step 2: Convert to fraction form
    73,040.72/100,796.12 = 39,506.64/x
  3. Step 3: Cross multiply
    73,040.72x = 100,796.12 × 39,506.64
  4. Step 4: Simplify right side
    73,040.72x = 3,982,116,026.24
  5. Step 5: Solve for x
    x = 3,982,116,026.24/73,040.72
  6. Step 6: Final answer
    x = 54,519.12

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1.5x scale

Why These Related Problems?

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