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Finding the Fourth Proportional to 3,722.51, 5,581.03 and 1,776.08

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Solution

The fourth proportional to 3,722.51, 5,581.03 and 1,776.08 is: 2,662.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,722.51 : 5,581.03 = 1,776.08 : x
  2. Step 2: Convert to fraction form
    3,722.51/5,581.03 = 1,776.08/x
  3. Step 3: Cross multiply
    3,722.51x = 5,581.03 × 1,776.08
  4. Step 4: Simplify right side
    3,722.51x = 9,912,337.37
  5. Step 5: Solve for x
    x = 9,912,337.37/3,722.51
  6. Step 6: Final answer
    x = 2,662.81

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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.