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Finding the Third Proportional to 9,239 and 13,955

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Solution

The third proportional to 9,239 and 13,955 is: 21,078.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,239 : 13,955 = 13,955 : x
  2. Step 2: Convert to fraction form
    9,239/13,955 = 13,955/x
  3. Step 3: Cross multiply
    9,239x = 13,955 × 13,955
  4. Step 4: Simplify right side
    9,239x = 194,742,025
  5. Step 5: Solve for x
    x = 194,742,025/9,239
  6. Step 6: Final answer
    x = 21,078.26

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.