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Finding the Third Proportional to 18,554,615 and 28,311,831

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Solution

The third proportional to 18,554,615 and 28,311,831 is: 43,200,021.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,554,615 : 28,311,831 = 28,311,831 : x
  2. Step 2: Convert to fraction form
    18,554,615/28,311,831 = 28,311,831/x
  3. Step 3: Cross multiply
    18,554,615x = 28,311,831 × 28,311,831
  4. Step 4: Simplify right side
    18,554,615x = 801,559,774,572,561
  5. Step 5: Solve for x
    x = 801,559,774,572,561/18,554,615
  6. Step 6: Final answer
    x = 43,200,021.91

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.