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Finding the Third Proportional to 12,369,505.50 and 18,874,198.13

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Solution

The third proportional to 12,369,505.50 and 18,874,198.13 is: 28,799,482.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,369,505.50 : 18,874,198.13 = 18,874,198.13 : x
  2. Step 2: Convert to fraction form
    12,369,505.50/18,874,198.13 = 18,874,198.13/x
  3. Step 3: Cross multiply
    12,369,505.50x = 18,874,198.13 × 18,874,198.13
  4. Step 4: Simplify right side
    12,369,505.50x = 356,235,354,861,753.50
  5. Step 5: Solve for x
    x = 356,235,354,861,753.50/12,369,505.50
  6. Step 6: Final answer
    x = 28,799,482.31

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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.