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Finding the Fourth Proportional to 3,607.79, 4,977.92 and 2,035.31

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Solution

The fourth proportional to 3,607.79, 4,977.92 and 2,035.31 is: 2,808.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,607.79 : 4,977.92 = 2,035.31 : x
  2. Step 2: Convert to fraction form
    3,607.79/4,977.92 = 2,035.31/x
  3. Step 3: Cross multiply
    3,607.79x = 4,977.92 × 2,035.31
  4. Step 4: Simplify right side
    3,607.79x = 10,131,590.55
  5. Step 5: Solve for x
    x = 10,131,590.55/3,607.79
  6. Step 6: Final answer
    x = 2,808.26

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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.