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Finding the Third Proportional to 4,137,432.75 and 6,422,662.13

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Solution

The third proportional to 4,137,432.75 and 6,422,662.13 is: 9,970,092.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,137,432.75 : 6,422,662.13 = 6,422,662.13 : x
  2. Step 2: Convert to fraction form
    4,137,432.75/6,422,662.13 = 6,422,662.13/x
  3. Step 3: Cross multiply
    4,137,432.75x = 6,422,662.13 × 6,422,662.13
  4. Step 4: Simplify right side
    4,137,432.75x = 41,250,588,771,909.52
  5. Step 5: Solve for x
    x = 41,250,588,771,909.52/4,137,432.75
  6. Step 6: Final answer
    x = 9,970,092.87

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.