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Finding the Third Proportional to 12,547 and 16,657

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Solution

The third proportional to 12,547 and 16,657 is: 22,113.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,547 : 16,657 = 16,657 : x
  2. Step 2: Convert to fraction form
    12,547/16,657 = 16,657/x
  3. Step 3: Cross multiply
    12,547x = 16,657 × 16,657
  4. Step 4: Simplify right side
    12,547x = 277,455,649
  5. Step 5: Solve for x
    x = 277,455,649/12,547
  6. Step 6: Final answer
    x = 22,113.31

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.