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Finding the Third Proportional to 12,240 and 14,896

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Solution

The third proportional to 12,240 and 14,896 is: 18,128.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,240 : 14,896 = 14,896 : x
  2. Step 2: Convert to fraction form
    12,240/14,896 = 14,896/x
  3. Step 3: Cross multiply
    12,240x = 14,896 × 14,896
  4. Step 4: Simplify right side
    12,240x = 221,890,816
  5. Step 5: Solve for x
    x = 221,890,816/12,240
  6. Step 6: Final answer
    x = 18,128.33

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Why These Related Problems?

These problems maintain the same ratio (1.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.