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Finding the Fourth Proportional to 73,107.28, 100,888.02 and 39,573.28

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Solution

The fourth proportional to 73,107.28, 100,888.02 and 39,573.28 is: 54,611.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,107.28 : 100,888.02 = 39,573.28 : x
  2. Step 2: Convert to fraction form
    73,107.28/100,888.02 = 39,573.28/x
  3. Step 3: Cross multiply
    73,107.28x = 100,888.02 × 39,573.28
  4. Step 4: Simplify right side
    73,107.28x = 3,992,469,864.11
  5. Step 5: Solve for x
    x = 3,992,469,864.11/73,107.28
  6. Step 6: Final answer
    x = 54,611.11

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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.