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Finding the Fourth Proportional to 13,697.46, 20,548.98 and 4,932.42

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Solution

The fourth proportional to 13,697.46, 20,548.98 and 4,932.42 is: 7,399.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,697.46 : 20,548.98 = 4,932.42 : x
  2. Step 2: Convert to fraction form
    13,697.46/20,548.98 = 4,932.42/x
  3. Step 3: Cross multiply
    13,697.46x = 20,548.98 × 4,932.42
  4. Step 4: Simplify right side
    13,697.46x = 101,356,199.93
  5. Step 5: Solve for x
    x = 101,356,199.93/13,697.46
  6. Step 6: Final answer
    x = 7,399.63

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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.