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Finding the Third Proportional to 27,312 and 42,552

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Solution

The third proportional to 27,312 and 42,552 is: 66,295.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,312 : 42,552 = 42,552 : x
  2. Step 2: Convert to fraction form
    27,312/42,552 = 42,552/x
  3. Step 3: Cross multiply
    27,312x = 42,552 × 42,552
  4. Step 4: Simplify right side
    27,312x = 1,810,672,704
  5. Step 5: Solve for x
    x = 1,810,672,704/27,312
  6. Step 6: Final answer
    x = 66,295.87

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.