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Finding the Third Proportional to 18,543,900 and 28,366,986

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Solution

The third proportional to 18,543,900 and 28,366,986 is: 43,393,563.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,543,900 : 28,366,986 = 28,366,986 : x
  2. Step 2: Convert to fraction form
    18,543,900/28,366,986 = 28,366,986/x
  3. Step 3: Cross multiply
    18,543,900x = 28,366,986 × 28,366,986
  4. Step 4: Simplify right side
    18,543,900x = 804,685,894,724,196
  5. Step 5: Solve for x
    x = 804,685,894,724,196/18,543,900
  6. Step 6: Final answer
    x = 43,393,563.10

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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.