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Finding the Third Proportional to 4,703,730 and 9,972,657

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Solution

The third proportional to 4,703,730 and 9,972,657 is: 21,143,621.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,703,730 : 9,972,657 = 9,972,657 : x
  2. Step 2: Convert to fraction form
    4,703,730/9,972,657 = 9,972,657/x
  3. Step 3: Cross multiply
    4,703,730x = 9,972,657 × 9,972,657
  4. Step 4: Simplify right side
    4,703,730x = 99,453,887,639,649
  5. Step 5: Solve for x
    x = 99,453,887,639,649/4,703,730
  6. Step 6: Final answer
    x = 21,143,621.69

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.