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Finding the Third Proportional to 8,430,537 and 18,188,178

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Solution

The third proportional to 8,430,537 and 18,188,178 is: 39,239,471.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,430,537 : 18,188,178 = 18,188,178 : x
  2. Step 2: Convert to fraction form
    8,430,537/18,188,178 = 18,188,178/x
  3. Step 3: Cross multiply
    8,430,537x = 18,188,178 × 18,188,178
  4. Step 4: Simplify right side
    8,430,537x = 330,809,818,959,684
  5. Step 5: Solve for x
    x = 330,809,818,959,684/8,430,537
  6. Step 6: Final answer
    x = 39,239,471.81

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.