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Finding the Third Proportional to 4,640,551.50 and 9,991,996.50

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Solution

The third proportional to 4,640,551.50 and 9,991,996.50 is: 21,514,682.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,640,551.50 : 9,991,996.50 = 9,991,996.50 : x
  2. Step 2: Convert to fraction form
    4,640,551.50/9,991,996.50 = 9,991,996.50/x
  3. Step 3: Cross multiply
    4,640,551.50x = 9,991,996.50 × 9,991,996.50
  4. Step 4: Simplify right side
    4,640,551.50x = 99,839,994,056,012.25
  5. Step 5: Solve for x
    x = 99,839,994,056,012.25/4,640,551.50
  6. Step 6: Final answer
    x = 21,514,682.91

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.