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Finding the Third Proportional to 1,991,215.50 and 4,369,503

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Solution

The third proportional to 1,991,215.50 and 4,369,503 is: 9,588,392.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,991,215.50 : 4,369,503 = 4,369,503 : x
  2. Step 2: Convert to fraction form
    1,991,215.50/4,369,503 = 4,369,503/x
  3. Step 3: Cross multiply
    1,991,215.50x = 4,369,503 × 4,369,503
  4. Step 4: Simplify right side
    1,991,215.50x = 19,092,556,467,009
  5. Step 5: Solve for x
    x = 19,092,556,467,009/1,991,215.50
  6. Step 6: Final answer
    x = 9,588,392.85

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.