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Finding the Third Proportional to 18,587,685 and 40,263,411

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Solution

The third proportional to 18,587,685 and 40,263,411 is: 87,215,931.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,587,685 : 40,263,411 = 40,263,411 : x
  2. Step 2: Convert to fraction form
    18,587,685/40,263,411 = 40,263,411/x
  3. Step 3: Cross multiply
    18,587,685x = 40,263,411 × 40,263,411
  4. Step 4: Simplify right side
    18,587,685x = 1,621,142,265,354,921
  5. Step 5: Solve for x
    x = 1,621,142,265,354,921/18,587,685
  6. Step 6: Final answer
    x = 87,215,931.70

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.