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Finding the Third Proportional to 9,578,866 and 20,913,480

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Solution

The third proportional to 9,578,866 and 20,913,480 is: 45,660,273.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,578,866 : 20,913,480 = 20,913,480 : x
  2. Step 2: Convert to fraction form
    9,578,866/20,913,480 = 20,913,480/x
  3. Step 3: Cross multiply
    9,578,866x = 20,913,480 × 20,913,480
  4. Step 4: Simplify right side
    9,578,866x = 437,373,645,710,400
  5. Step 5: Solve for x
    x = 437,373,645,710,400/9,578,866
  6. Step 6: Final answer
    x = 45,660,273.95

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.