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Finding the Third Proportional to 14,130 and 20,955

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Solution

The third proportional to 14,130 and 20,955 is: 31,076.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,130 : 20,955 = 20,955 : x
  2. Step 2: Convert to fraction form
    14,130/20,955 = 20,955/x
  3. Step 3: Cross multiply
    14,130x = 20,955 × 20,955
  4. Step 4: Simplify right side
    14,130x = 439,112,025
  5. Step 5: Solve for x
    x = 439,112,025/14,130
  6. Step 6: Final answer
    x = 31,076.58

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.