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Finding the Fourth Proportional to 8,475.03, 11,687.49 and 5,489.37

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Solution

The fourth proportional to 8,475.03, 11,687.49 and 5,489.37 is: 7,570.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,475.03 : 11,687.49 = 5,489.37 : x
  2. Step 2: Convert to fraction form
    8,475.03/11,687.49 = 5,489.37/x
  3. Step 3: Cross multiply
    8,475.03x = 11,687.49 × 5,489.37
  4. Step 4: Simplify right side
    8,475.03x = 64,156,956.98
  5. Step 5: Solve for x
    x = 64,156,956.98/8,475.03
  6. Step 6: Final answer
    x = 7,570.12

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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.