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Finding the Third Proportional to 19,143,018.75 and 42,005,517

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Solution

The third proportional to 19,143,018.75 and 42,005,517 is: 92,172,686.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,143,018.75 : 42,005,517 = 42,005,517 : x
  2. Step 2: Convert to fraction form
    19,143,018.75/42,005,517 = 42,005,517/x
  3. Step 3: Cross multiply
    19,143,018.75x = 42,005,517 × 42,005,517
  4. Step 4: Simplify right side
    19,143,018.75x = 1,764,463,458,437,289
  5. Step 5: Solve for x
    x = 1,764,463,458,437,289/19,143,018.75
  6. Step 6: Final answer
    x = 92,172,686.11

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.