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Finding the Third Proportional to 14,412 and 31,128

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Solution

The third proportional to 14,412 and 31,128 is: 67,232.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,412 : 31,128 = 31,128 : x
  2. Step 2: Convert to fraction form
    14,412/31,128 = 31,128/x
  3. Step 3: Cross multiply
    14,412x = 31,128 × 31,128
  4. Step 4: Simplify right side
    14,412x = 968,952,384
  5. Step 5: Solve for x
    x = 968,952,384/14,412
  6. Step 6: Final answer
    x = 67,232.33

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.