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Finding the Third Proportional to 18,962,516.81 and 40,802,981.34

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Solution

The third proportional to 18,962,516.81 and 40,802,981.34 is: 87,798,645.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,962,516.81 : 40,802,981.34 = 40,802,981.34 : x
  2. Step 2: Convert to fraction form
    18,962,516.81/40,802,981.34 = 40,802,981.34/x
  3. Step 3: Cross multiply
    18,962,516.81x = 40,802,981.34 × 40,802,981.34
  4. Step 4: Simplify right side
    18,962,516.81x = 1,664,883,286,538,410.50
  5. Step 5: Solve for x
    x = 1,664,883,286,538,410.50/18,962,516.81
  6. Step 6: Final answer
    x = 87,798,645.24

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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.