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Finding the Third Proportional to 3,390,963.75 and 4,743,142.31

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Solution

The third proportional to 3,390,963.75 and 4,743,142.31 is: 6,634,514.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390,963.75 : 4,743,142.31 = 4,743,142.31 : x
  2. Step 2: Convert to fraction form
    3,390,963.75/4,743,142.31 = 4,743,142.31/x
  3. Step 3: Cross multiply
    3,390,963.75x = 4,743,142.31 × 4,743,142.31
  4. Step 4: Simplify right side
    3,390,963.75x = 22,497,398,996,627.85
  5. Step 5: Solve for x
    x = 22,497,398,996,627.85/3,390,963.75
  6. Step 6: Final answer
    x = 6,634,514.74

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.