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Finding the Fourth Proportional to 3,776.92, 5,665.58 and 1,404.48

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Solution

The fourth proportional to 3,776.92, 5,665.58 and 1,404.48 is: 2,106.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,776.92 : 5,665.58 = 1,404.48 : x
  2. Step 2: Convert to fraction form
    3,776.92/5,665.58 = 1,404.48/x
  3. Step 3: Cross multiply
    3,776.92x = 5,665.58 × 1,404.48
  4. Step 4: Simplify right side
    3,776.92x = 7,957,176.12
  5. Step 5: Solve for x
    x = 7,957,176.12/3,776.92
  6. Step 6: Final answer
    x = 2,106.79

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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.