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Finding the Fourth Proportional to 4,899.05, 6,760.49 and 2,660.87

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Solution

The fourth proportional to 4,899.05, 6,760.49 and 2,660.87 is: 3,671.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,899.05 : 6,760.49 = 2,660.87 : x
  2. Step 2: Convert to fraction form
    4,899.05/6,760.49 = 2,660.87/x
  3. Step 3: Cross multiply
    4,899.05x = 6,760.49 × 2,660.87
  4. Step 4: Simplify right side
    4,899.05x = 17,988,785.03
  5. Step 5: Solve for x
    x = 17,988,785.03/4,899.05
  6. Step 6: Final answer
    x = 3,671.90

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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.