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Finding the Fourth Proportional to 4,955.78, 6,839.02 and 2,717.68

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Solution

The fourth proportional to 4,955.78, 6,839.02 and 2,717.68 is: 3,750.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,955.78 : 6,839.02 = 2,717.68 : x
  2. Step 2: Convert to fraction form
    4,955.78/6,839.02 = 2,717.68/x
  3. Step 3: Cross multiply
    4,955.78x = 6,839.02 × 2,717.68
  4. Step 4: Simplify right side
    4,955.78x = 18,586,267.87
  5. Step 5: Solve for x
    x = 18,586,267.87/4,955.78
  6. Step 6: Final answer
    x = 3,750.42

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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.