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Finding the Fourth Proportional to 4,992.71, 6,890.00 and 2,754.61

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Solution

The fourth proportional to 4,992.71, 6,890.00 and 2,754.61 is: 3,801.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,992.71 : 6,890.00 = 2,754.61 : x
  2. Step 2: Convert to fraction form
    4,992.71/6,890.00 = 2,754.61/x
  3. Step 3: Cross multiply
    4,992.71x = 6,890.00 × 2,754.61
  4. Step 4: Simplify right side
    4,992.71x = 18,979,231.90
  5. Step 5: Solve for x
    x = 18,979,231.90/4,992.71
  6. Step 6: Final answer
    x = 3,801.39

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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.