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Finding the Fourth Proportional to 3,713.62, 5,573.16 and 2,991.91

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Solution

The fourth proportional to 3,713.62, 5,573.16 and 2,991.91 is: 4,490.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,713.62 : 5,573.16 = 2,991.91 : x
  2. Step 2: Convert to fraction form
    3,713.62/5,573.16 = 2,991.91/x
  3. Step 3: Cross multiply
    3,713.62x = 5,573.16 × 2,991.91
  4. Step 4: Simplify right side
    3,713.62x = 16,674,393.14
  5. Step 5: Solve for x
    x = 16,674,393.14/3,713.62
  6. Step 6: Final answer
    x = 4,490.06

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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.