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Finding the Third Proportional to 31,224 and 48,360

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Solution

The third proportional to 31,224 and 48,360 is: 74,900.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,224 : 48,360 = 48,360 : x
  2. Step 2: Convert to fraction form
    31,224/48,360 = 48,360/x
  3. Step 3: Cross multiply
    31,224x = 48,360 × 48,360
  4. Step 4: Simplify right side
    31,224x = 2,338,689,600
  5. Step 5: Solve for x
    x = 2,338,689,600/31,224
  6. Step 6: Final answer
    x = 74,900.38

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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.