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Finding the Third Proportional to 14,617.13 and 21,378.94

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Solution

The third proportional to 14,617.13 and 21,378.94 is: 31,268.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,617.13 : 21,378.94 = 21,378.94 : x
  2. Step 2: Convert to fraction form
    14,617.13/21,378.94 = 21,378.94/x
  3. Step 3: Cross multiply
    14,617.13x = 21,378.94 × 21,378.94
  4. Step 4: Simplify right side
    14,617.13x = 457,058,968.63
  5. Step 5: Solve for x
    x = 457,058,968.63/14,617.13
  6. Step 6: Final answer
    x = 31,268.73

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.