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Finding the Third Proportional to 14,218 and 31,124

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Solution

The third proportional to 14,218 and 31,124 is: 68,132.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,218 : 31,124 = 31,124 : x
  2. Step 2: Convert to fraction form
    14,218/31,124 = 31,124/x
  3. Step 3: Cross multiply
    14,218x = 31,124 × 31,124
  4. Step 4: Simplify right side
    14,218x = 968,703,376
  5. Step 5: Solve for x
    x = 968,703,376/14,218
  6. Step 6: Final answer
    x = 68,132.18

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.