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Finding the Fourth Proportional to 12,493.44, 18,740.16 and 7,296.48

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Solution

The fourth proportional to 12,493.44, 18,740.16 and 7,296.48 is: 10,944.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,493.44 : 18,740.16 = 7,296.48 : x
  2. Step 2: Convert to fraction form
    12,493.44/18,740.16 = 7,296.48/x
  3. Step 3: Cross multiply
    12,493.44x = 18,740.16 × 7,296.48
  4. Step 4: Simplify right side
    12,493.44x = 136,737,202.64
  5. Step 5: Solve for x
    x = 136,737,202.64/12,493.44
  6. Step 6: Final answer
    x = 10,944.72

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1.5x scale

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.