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Finding the Third Proportional to 29,317.50 and 40,392

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Solution

The third proportional to 29,317.50 and 40,392 is: 55,649.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,317.50 : 40,392 = 40,392 : x
  2. Step 2: Convert to fraction form
    29,317.50/40,392 = 40,392/x
  3. Step 3: Cross multiply
    29,317.50x = 40,392 × 40,392
  4. Step 4: Simplify right side
    29,317.50x = 1,631,513,664
  5. Step 5: Solve for x
    x = 1,631,513,664/29,317.50
  6. Step 6: Final answer
    x = 55,649.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.