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Finding the Third Proportional to 47,398 and 63,603

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Solution

The third proportional to 47,398 and 63,603 is: 85,348.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,398 : 63,603 = 63,603 : x
  2. Step 2: Convert to fraction form
    47,398/63,603 = 63,603/x
  3. Step 3: Cross multiply
    47,398x = 63,603 × 63,603
  4. Step 4: Simplify right side
    47,398x = 4,045,341,609
  5. Step 5: Solve for x
    x = 4,045,341,609/47,398
  6. Step 6: Final answer
    x = 85,348.36

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.