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Finding the Third Proportional to 12,373,257.19 and 18,719,139.19

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Solution

The third proportional to 12,373,257.19 and 18,719,139.19 is: 28,319,638.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,373,257.19 : 18,719,139.19 = 18,719,139.19 : x
  2. Step 2: Convert to fraction form
    12,373,257.19/18,719,139.19 = 18,719,139.19/x
  3. Step 3: Cross multiply
    12,373,257.19x = 18,719,139.19 × 18,719,139.19
  4. Step 4: Simplify right side
    12,373,257.19x = 350,406,171,920,998.19
  5. Step 5: Solve for x
    x = 350,406,171,920,998.19/12,373,257.19
  6. Step 6: Final answer
    x = 28,319,638.61

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.