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Finding the Third Proportional to 19,781,316 and 41,688,063

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Solution

The third proportional to 19,781,316 and 41,688,063 is: 87,855,357.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,781,316 : 41,688,063 = 41,688,063 : x
  2. Step 2: Convert to fraction form
    19,781,316/41,688,063 = 41,688,063/x
  3. Step 3: Cross multiply
    19,781,316x = 41,688,063 × 41,688,063
  4. Step 4: Simplify right side
    19,781,316x = 1,737,894,596,691,969
  5. Step 5: Solve for x
    x = 1,737,894,596,691,969/19,781,316
  6. Step 6: Final answer
    x = 87,855,357.89

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.