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Finding the Fourth Proportional to 4,996.69, 6,895.74 and 2,872.90

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Solution

The fourth proportional to 4,996.69, 6,895.74 and 2,872.90 is: 3,964.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,996.69 : 6,895.74 = 2,872.90 : x
  2. Step 2: Convert to fraction form
    4,996.69/6,895.74 = 2,872.90/x
  3. Step 3: Cross multiply
    4,996.69x = 6,895.74 × 2,872.90
  4. Step 4: Simplify right side
    4,996.69x = 19,810,771.45
  5. Step 5: Solve for x
    x = 19,810,771.45/4,996.69
  6. Step 6: Final answer
    x = 3,964.78

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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.