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Finding the Third Proportional to 56,752 and 85,917

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Solution

The third proportional to 56,752 and 85,917 is: 130,069.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,752 : 85,917 = 85,917 : x
  2. Step 2: Convert to fraction form
    56,752/85,917 = 85,917/x
  3. Step 3: Cross multiply
    56,752x = 85,917 × 85,917
  4. Step 4: Simplify right side
    56,752x = 7,381,730,889
  5. Step 5: Solve for x
    x = 7,381,730,889/56,752
  6. Step 6: Final answer
    x = 130,069.97

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.