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Finding the Third Proportional to 18,706,401 and 40,197,534

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Solution

The third proportional to 18,706,401 and 40,197,534 is: 86,379,081.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,706,401 : 40,197,534 = 40,197,534 : x
  2. Step 2: Convert to fraction form
    18,706,401/40,197,534 = 40,197,534/x
  3. Step 3: Cross multiply
    18,706,401x = 40,197,534 × 40,197,534
  4. Step 4: Simplify right side
    18,706,401x = 1,615,841,739,681,156
  5. Step 5: Solve for x
    x = 1,615,841,739,681,156/18,706,401
  6. Step 6: Final answer
    x = 86,379,081.67

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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.