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Finding the Third Proportional to 11,970,428 and 18,573,176

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Solution

The third proportional to 11,970,428 and 18,573,176 is: 28,817,922.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,970,428 : 18,573,176 = 18,573,176 : x
  2. Step 2: Convert to fraction form
    11,970,428/18,573,176 = 18,573,176/x
  3. Step 3: Cross multiply
    11,970,428x = 18,573,176 × 18,573,176
  4. Step 4: Simplify right side
    11,970,428x = 344,962,866,726,976
  5. Step 5: Solve for x
    x = 344,962,866,726,976/11,970,428
  6. Step 6: Final answer
    x = 28,817,922.53

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.