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Finding the Third Proportional to 31,335 and 48,543

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Solution

The third proportional to 31,335 and 48,543 is: 75,200.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,335 : 48,543 = 48,543 : x
  2. Step 2: Convert to fraction form
    31,335/48,543 = 48,543/x
  3. Step 3: Cross multiply
    31,335x = 48,543 × 48,543
  4. Step 4: Simplify right side
    31,335x = 2,356,422,849
  5. Step 5: Solve for x
    x = 2,356,422,849/31,335
  6. Step 6: Final answer
    x = 75,200.98

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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.