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Finding the Fourth Proportional to 7,608.91, 11,415.18 and 2,414.79

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Solution

The fourth proportional to 7,608.91, 11,415.18 and 2,414.79 is: 3,622.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,608.91 : 11,415.18 = 2,414.79 : x
  2. Step 2: Convert to fraction form
    7,608.91/11,415.18 = 2,414.79/x
  3. Step 3: Cross multiply
    7,608.91x = 11,415.18 × 2,414.79
  4. Step 4: Simplify right side
    7,608.91x = 27,565,262.51
  5. Step 5: Solve for x
    x = 27,565,262.51/7,608.91
  6. Step 6: Final answer
    x = 3,622.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.