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Finding the Third Proportional to 3,676,389.50 and 8,078,458

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Solution

The third proportional to 3,676,389.50 and 8,078,458 is: 17,751,515.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,676,389.50 : 8,078,458 = 8,078,458 : x
  2. Step 2: Convert to fraction form
    3,676,389.50/8,078,458 = 8,078,458/x
  3. Step 3: Cross multiply
    3,676,389.50x = 8,078,458 × 8,078,458
  4. Step 4: Simplify right side
    3,676,389.50x = 65,261,483,657,764
  5. Step 5: Solve for x
    x = 65,261,483,657,764/3,676,389.50
  6. Step 6: Final answer
    x = 17,751,515.08

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.