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Finding the Fourth Proportional to 4,992.68, 6,889.92 and 2,896.76

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Solution

The fourth proportional to 4,992.68, 6,889.92 and 2,896.76 is: 3,997.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,992.68 : 6,889.92 = 2,896.76 : x
  2. Step 2: Convert to fraction form
    4,992.68/6,889.92 = 2,896.76/x
  3. Step 3: Cross multiply
    4,992.68x = 6,889.92 × 2,896.76
  4. Step 4: Simplify right side
    4,992.68x = 19,958,444.66
  5. Step 5: Solve for x
    x = 19,958,444.66/4,992.68
  6. Step 6: Final answer
    x = 3,997.54

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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.