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Finding the Third Proportional to 12,154,662.56 and 18,540,611.44

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Solution

The third proportional to 12,154,662.56 and 18,540,611.44 is: 28,281,679.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,154,662.56 : 18,540,611.44 = 18,540,611.44 : x
  2. Step 2: Convert to fraction form
    12,154,662.56/18,540,611.44 = 18,540,611.44/x
  3. Step 3: Cross multiply
    12,154,662.56x = 18,540,611.44 × 18,540,611.44
  4. Step 4: Simplify right side
    12,154,662.56x = 343,754,272,476,355.81
  5. Step 5: Solve for x
    x = 343,754,272,476,355.81/12,154,662.56
  6. Step 6: Final answer
    x = 28,281,679.62

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.