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Finding the Third Proportional to 4,999,981 and 7,079,580

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Solution

The third proportional to 4,999,981 and 7,079,580 is: 10,024,128.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,999,981 : 7,079,580 = 7,079,580 : x
  2. Step 2: Convert to fraction form
    4,999,981/7,079,580 = 7,079,580/x
  3. Step 3: Cross multiply
    4,999,981x = 7,079,580 × 7,079,580
  4. Step 4: Simplify right side
    4,999,981x = 50,120,452,976,400
  5. Step 5: Solve for x
    x = 50,120,452,976,400/4,999,981
  6. Step 6: Final answer
    x = 10,024,128.69

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.