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Finding the Fourth Proportional to 4,912.84, 6,779.71 and 2,674.71

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Solution

The fourth proportional to 4,912.84, 6,779.71 and 2,674.71 is: 3,691.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,912.84 : 6,779.71 = 2,674.71 : x
  2. Step 2: Convert to fraction form
    4,912.84/6,779.71 = 2,674.71/x
  3. Step 3: Cross multiply
    4,912.84x = 6,779.71 × 2,674.71
  4. Step 4: Simplify right side
    4,912.84x = 18,133,758.13
  5. Step 5: Solve for x
    x = 18,133,758.13/4,912.84
  6. Step 6: Final answer
    x = 3,691.09

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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.