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Finding the Third Proportional to 12,120 and 26,148

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Solution

The third proportional to 12,120 and 26,148 is: 56,412.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,120 : 26,148 = 26,148 : x
  2. Step 2: Convert to fraction form
    12,120/26,148 = 26,148/x
  3. Step 3: Cross multiply
    12,120x = 26,148 × 26,148
  4. Step 4: Simplify right side
    12,120x = 683,717,904
  5. Step 5: Solve for x
    x = 683,717,904/12,120
  6. Step 6: Final answer
    x = 56,412.37

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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.