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Finding the Third Proportional to 18,877,781 and 28,664,648

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Solution

The third proportional to 18,877,781 and 28,664,648 is: 43,525,351.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,877,781 : 28,664,648 = 28,664,648 : x
  2. Step 2: Convert to fraction form
    18,877,781/28,664,648 = 28,664,648/x
  3. Step 3: Cross multiply
    18,877,781x = 28,664,648 × 28,664,648
  4. Step 4: Simplify right side
    18,877,781x = 821,662,044,963,904
  5. Step 5: Solve for x
    x = 821,662,044,963,904/18,877,781
  6. Step 6: Final answer
    x = 43,525,351.04

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.