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Finding the Third Proportional to 7,160 and 16,929

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Solution

The third proportional to 7,160 and 16,929 is: 40,026.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,160 : 16,929 = 16,929 : x
  2. Step 2: Convert to fraction form
    7,160/16,929 = 16,929/x
  3. Step 3: Cross multiply
    7,160x = 16,929 × 16,929
  4. Step 4: Simplify right side
    7,160x = 286,591,041
  5. Step 5: Solve for x
    x = 286,591,041/7,160
  6. Step 6: Final answer
    x = 40,026.68

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.