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Finding the Fourth Proportional to 73,453.44, 101,362.80 and 39,918.72

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Solution

The fourth proportional to 73,453.44, 101,362.80 and 39,918.72 is: 55,086.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,453.44 : 101,362.80 = 39,918.72 : x
  2. Step 2: Convert to fraction form
    73,453.44/101,362.80 = 39,918.72/x
  3. Step 3: Cross multiply
    73,453.44x = 101,362.80 × 39,918.72
  4. Step 4: Simplify right side
    73,453.44x = 4,046,273,231.62
  5. Step 5: Solve for x
    x = 4,046,273,231.62/73,453.44
  6. Step 6: Final answer
    x = 55,086.23

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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.