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Finding the Fourth Proportional to 4,991.99, 6,888.82 and 2,753.88

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Solution

The fourth proportional to 4,991.99, 6,888.82 and 2,753.88 is: 3,800.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,991.99 : 6,888.82 = 2,753.88 : x
  2. Step 2: Convert to fraction form
    4,991.99/6,888.82 = 2,753.88/x
  3. Step 3: Cross multiply
    4,991.99x = 6,888.82 × 2,753.88
  4. Step 4: Simplify right side
    4,991.99x = 18,970,983.62
  5. Step 5: Solve for x
    x = 18,970,983.62/4,991.99
  6. Step 6: Final answer
    x = 3,800.28

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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.