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Finding the Fourth Proportional to 8,475.38, 12,713.06 and 2,631.98

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Solution

The fourth proportional to 8,475.38, 12,713.06 and 2,631.98 is: 3,947.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,475.38 : 12,713.06 = 2,631.98 : x
  2. Step 2: Convert to fraction form
    8,475.38/12,713.06 = 2,631.98/x
  3. Step 3: Cross multiply
    8,475.38x = 12,713.06 × 2,631.98
  4. Step 4: Simplify right side
    8,475.38x = 33,460,558.02
  5. Step 5: Solve for x
    x = 33,460,558.02/8,475.38
  6. Step 6: Final answer
    x = 3,947.97

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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.