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Finding the Fourth Proportional to 3,062.78, 4,596 and 1,331.42

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Solution

The fourth proportional to 3,062.78, 4,596 and 1,331.42 is: 1,997.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,062.78 : 4,596 = 1,331.42 : x
  2. Step 2: Convert to fraction form
    3,062.78/4,596 = 1,331.42/x
  3. Step 3: Cross multiply
    3,062.78x = 4,596 × 1,331.42
  4. Step 4: Simplify right side
    3,062.78x = 6,119,206.32
  5. Step 5: Solve for x
    x = 6,119,206.32/3,062.78
  6. Step 6: Final answer
    x = 1,997.93

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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.