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Finding the Third Proportional to 7,221,785 and 15,581,080

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Solution

The third proportional to 7,221,785 and 15,581,080 is: 33,616,350.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,221,785 : 15,581,080 = 15,581,080 : x
  2. Step 2: Convert to fraction form
    7,221,785/15,581,080 = 15,581,080/x
  3. Step 3: Cross multiply
    7,221,785x = 15,581,080 × 15,581,080
  4. Step 4: Simplify right side
    7,221,785x = 242,770,053,966,400
  5. Step 5: Solve for x
    x = 242,770,053,966,400/7,221,785
  6. Step 6: Final answer
    x = 33,616,350.25

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.