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Finding the Third Proportional to 7,220,719.50 and 15,858,687

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Solution

The third proportional to 7,220,719.50 and 15,858,687 is: 34,830,040.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220,719.50 : 15,858,687 = 15,858,687 : x
  2. Step 2: Convert to fraction form
    7,220,719.50/15,858,687 = 15,858,687/x
  3. Step 3: Cross multiply
    7,220,719.50x = 15,858,687 × 15,858,687
  4. Step 4: Simplify right side
    7,220,719.50x = 251,497,953,363,969
  5. Step 5: Solve for x
    x = 251,497,953,363,969/7,220,719.50
  6. Step 6: Final answer
    x = 34,830,040.60

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.