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Finding the Third Proportional to 4,312 and 9,137

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Solution

The third proportional to 4,312 and 9,137 is: 19,361.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,312 : 9,137 = 9,137 : x
  2. Step 2: Convert to fraction form
    4,312/9,137 = 9,137/x
  3. Step 3: Cross multiply
    4,312x = 9,137 × 9,137
  4. Step 4: Simplify right side
    4,312x = 83,484,769
  5. Step 5: Solve for x
    x = 83,484,769/4,312
  6. Step 6: Final answer
    x = 19,361.03

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.