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Finding the Fourth Proportional to 4,860.69, 6,707.72 and 2,764.82

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Solution

The fourth proportional to 4,860.69, 6,707.72 and 2,764.82 is: 3,815.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,860.69 : 6,707.72 = 2,764.82 : x
  2. Step 2: Convert to fraction form
    4,860.69/6,707.72 = 2,764.82/x
  3. Step 3: Cross multiply
    4,860.69x = 6,707.72 × 2,764.82
  4. Step 4: Simplify right side
    4,860.69x = 18,545,591.05
  5. Step 5: Solve for x
    x = 18,545,591.05/4,860.69
  6. Step 6: Final answer
    x = 3,815.42

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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.