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Finding the Fourth Proportional to 4,997.99, 7,494.80 and 2,657.43

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Solution

The fourth proportional to 4,997.99, 7,494.80 and 2,657.43 is: 3,984.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,997.99 : 7,494.80 = 2,657.43 : x
  2. Step 2: Convert to fraction form
    4,997.99/7,494.80 = 2,657.43/x
  3. Step 3: Cross multiply
    4,997.99x = 7,494.80 × 2,657.43
  4. Step 4: Simplify right side
    4,997.99x = 19,916,893.08
  5. Step 5: Solve for x
    x = 19,916,893.08/4,997.99
  6. Step 6: Final answer
    x = 3,984.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.