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Finding the Fourth Proportional to 11,281.52, 15,575.52 and 7,249.97

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Solution

The fourth proportional to 11,281.52, 15,575.52 and 7,249.97 is: 10,009.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,281.52 : 15,575.52 = 7,249.97 : x
  2. Step 2: Convert to fraction form
    11,281.52/15,575.52 = 7,249.97/x
  3. Step 3: Cross multiply
    11,281.52x = 15,575.52 × 7,249.97
  4. Step 4: Simplify right side
    11,281.52x = 112,922,052.73
  5. Step 5: Solve for x
    x = 112,922,052.73/11,281.52
  6. Step 6: Final answer
    x = 10,009.47

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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.