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Finding the Third Proportional to 19,312 and 29,172

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Solution

The third proportional to 19,312 and 29,172 is: 44,066.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,312 : 29,172 = 29,172 : x
  2. Step 2: Convert to fraction form
    19,312/29,172 = 29,172/x
  3. Step 3: Cross multiply
    19,312x = 29,172 × 29,172
  4. Step 4: Simplify right side
    19,312x = 851,005,584
  5. Step 5: Solve for x
    x = 851,005,584/19,312
  6. Step 6: Final answer
    x = 44,066.15

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.