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Finding the Third Proportional to 19,358 and 28,961

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Solution

The third proportional to 19,358 and 28,961 is: 43,327.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,358 : 28,961 = 28,961 : x
  2. Step 2: Convert to fraction form
    19,358/28,961 = 28,961/x
  3. Step 3: Cross multiply
    19,358x = 28,961 × 28,961
  4. Step 4: Simplify right side
    19,358x = 838,739,521
  5. Step 5: Solve for x
    x = 838,739,521/19,358
  6. Step 6: Final answer
    x = 43,327.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.