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Finding the Third Proportional to 5,330,721 and 8,188,572

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Solution

The third proportional to 5,330,721 and 8,188,572 is: 12,578,544.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,330,721 : 8,188,572 = 8,188,572 : x
  2. Step 2: Convert to fraction form
    5,330,721/8,188,572 = 8,188,572/x
  3. Step 3: Cross multiply
    5,330,721x = 8,188,572 × 8,188,572
  4. Step 4: Simplify right side
    5,330,721x = 67,052,711,399,184
  5. Step 5: Solve for x
    x = 67,052,711,399,184/5,330,721
  6. Step 6: Final answer
    x = 12,578,544.52

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.