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Finding the Fourth Proportional to 4,921.97, 6,785.17 and 3,740.99

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Solution

The fourth proportional to 4,921.97, 6,785.17 and 3,740.99 is: 5,157.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,921.97 : 6,785.17 = 3,740.99 : x
  2. Step 2: Convert to fraction form
    4,921.97/6,785.17 = 3,740.99/x
  3. Step 3: Cross multiply
    4,921.97x = 6,785.17 × 3,740.99
  4. Step 4: Simplify right side
    4,921.97x = 25,383,209.84
  5. Step 5: Solve for x
    x = 25,383,209.84/4,921.97
  6. Step 6: Final answer
    x = 5,157.13

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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.