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Finding the Fourth Proportional to 7,864.94, 11,797.81 and 2,600.44

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Solution

The fourth proportional to 7,864.94, 11,797.81 and 2,600.44 is: 3,900.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,864.94 : 11,797.81 = 2,600.44 : x
  2. Step 2: Convert to fraction form
    7,864.94/11,797.81 = 2,600.44/x
  3. Step 3: Cross multiply
    7,864.94x = 11,797.81 × 2,600.44
  4. Step 4: Simplify right side
    7,864.94x = 30,679,461.04
  5. Step 5: Solve for x
    x = 30,679,461.04/7,864.94
  6. Step 6: Final answer
    x = 3,900.79

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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.