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Finding the Fourth Proportional to 4,898.88, 6,760.42 and 2,660.74

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Solution

The fourth proportional to 4,898.88, 6,760.42 and 2,660.74 is: 3,671.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,898.88 : 6,760.42 = 2,660.74 : x
  2. Step 2: Convert to fraction form
    4,898.88/6,760.42 = 2,660.74/x
  3. Step 3: Cross multiply
    4,898.88x = 6,760.42 × 2,660.74
  4. Step 4: Simplify right side
    4,898.88x = 17,987,719.91
  5. Step 5: Solve for x
    x = 17,987,719.91/4,898.88
  6. Step 6: Final answer
    x = 3,671.80

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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.