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Finding the Third Proportional to 42,561,615 and 66,038,062.50

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Solution

The third proportional to 42,561,615 and 66,038,062.50 is: 102,463,820.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,561,615 : 66,038,062.50 = 66,038,062.50 : x
  2. Step 2: Convert to fraction form
    42,561,615/66,038,062.50 = 66,038,062.50/x
  3. Step 3: Cross multiply
    42,561,615x = 66,038,062.50 × 66,038,062.50
  4. Step 4: Simplify right side
    42,561,615x = 4,361,025,698,753,906
  5. Step 5: Solve for x
    x = 4,361,025,698,753,906/42,561,615
  6. Step 6: Final answer
    x = 102,463,820.95

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.