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Finding the Third Proportional to 47,312 and 73,246

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Solution

The third proportional to 47,312 and 73,246 is: 113,395.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,312 : 73,246 = 73,246 : x
  2. Step 2: Convert to fraction form
    47,312/73,246 = 73,246/x
  3. Step 3: Cross multiply
    47,312x = 73,246 × 73,246
  4. Step 4: Simplify right side
    47,312x = 5,364,976,516
  5. Step 5: Solve for x
    x = 5,364,976,516/47,312
  6. Step 6: Final answer
    x = 113,395.68

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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.