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Finding the Fourth Proportional to 11,249.01, 15,530.27 and 7,717.41

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Solution

The fourth proportional to 11,249.01, 15,530.27 and 7,717.41 is: 10,654.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,249.01 : 15,530.27 = 7,717.41 : x
  2. Step 2: Convert to fraction form
    11,249.01/15,530.27 = 7,717.41/x
  3. Step 3: Cross multiply
    11,249.01x = 15,530.27 × 7,717.41
  4. Step 4: Simplify right side
    11,249.01x = 119,853,422.41
  5. Step 5: Solve for x
    x = 119,853,422.41/11,249.01
  6. Step 6: Final answer
    x = 10,654.58

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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.