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Finding the Third Proportional to 12,113,181 and 18,618,781.50

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Solution

The third proportional to 12,113,181 and 18,618,781.50 is: 28,618,331.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,113,181 : 18,618,781.50 = 18,618,781.50 : x
  2. Step 2: Convert to fraction form
    12,113,181/18,618,781.50 = 18,618,781.50/x
  3. Step 3: Cross multiply
    12,113,181x = 18,618,781.50 × 18,618,781.50
  4. Step 4: Simplify right side
    12,113,181x = 346,659,024,544,742.25
  5. Step 5: Solve for x
    x = 346,659,024,544,742.25/12,113,181
  6. Step 6: Final answer
    x = 28,618,331.10

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.