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Finding the Fourth Proportional to 7,251.78, 10,007.48 and 4,107.97

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Solution

The fourth proportional to 7,251.78, 10,007.48 and 4,107.97 is: 5,669.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,251.78 : 10,007.48 = 4,107.97 : x
  2. Step 2: Convert to fraction form
    7,251.78/10,007.48 = 4,107.97/x
  3. Step 3: Cross multiply
    7,251.78x = 10,007.48 × 4,107.97
  4. Step 4: Simplify right side
    7,251.78x = 41,110,427.62
  5. Step 5: Solve for x
    x = 41,110,427.62/7,251.78
  6. Step 6: Final answer
    x = 5,669.01

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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.