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Finding the Third Proportional to 30,684 and 47,514

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Solution

The third proportional to 30,684 and 47,514 is: 73,575.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,684 : 47,514 = 47,514 : x
  2. Step 2: Convert to fraction form
    30,684/47,514 = 47,514/x
  3. Step 3: Cross multiply
    30,684x = 47,514 × 47,514
  4. Step 4: Simplify right side
    30,684x = 2,257,580,196
  5. Step 5: Solve for x
    x = 2,257,580,196/30,684
  6. Step 6: Final answer
    x = 73,575.16

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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.