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Finding the Fourth Proportional to 3,463.97, 4,779.96 and 2,138.10

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Solution

The fourth proportional to 3,463.97, 4,779.96 and 2,138.10 is: 2,950.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,463.97 : 4,779.96 = 2,138.10 : x
  2. Step 2: Convert to fraction form
    3,463.97/4,779.96 = 2,138.10/x
  3. Step 3: Cross multiply
    3,463.97x = 4,779.96 × 2,138.10
  4. Step 4: Simplify right side
    3,463.97x = 10,220,018.56
  5. Step 5: Solve for x
    x = 10,220,018.56/3,463.97
  6. Step 6: Final answer
    x = 2,950.38

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1.5x scale

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.