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Finding the Third Proportional to 18,195,940 and 40,031,028

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Solution

The third proportional to 18,195,940 and 40,031,028 is: 88,068,173.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,195,940 : 40,031,028 = 40,031,028 : x
  2. Step 2: Convert to fraction form
    18,195,940/40,031,028 = 40,031,028/x
  3. Step 3: Cross multiply
    18,195,940x = 40,031,028 × 40,031,028
  4. Step 4: Simplify right side
    18,195,940x = 1,602,483,202,736,784
  5. Step 5: Solve for x
    x = 1,602,483,202,736,784/18,195,940
  6. Step 6: Final answer
    x = 88,068,173.60

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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.