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Finding the Fourth Proportional to 7,481.51, 10,249.63 and 7,201.08

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Solution

The fourth proportional to 7,481.51, 10,249.63 and 7,201.08 is: 9,865.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,481.51 : 10,249.63 = 7,201.08 : x
  2. Step 2: Convert to fraction form
    7,481.51/10,249.63 = 7,201.08/x
  3. Step 3: Cross multiply
    7,481.51x = 10,249.63 × 7,201.08
  4. Step 4: Simplify right side
    7,481.51x = 73,808,354.35
  5. Step 5: Solve for x
    x = 73,808,354.35/7,481.51
  6. Step 6: Final answer
    x = 9,865.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.