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Finding the Third Proportional to 15,672 and 22,284

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Solution

The third proportional to 15,672 and 22,284 is: 31,685.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,672 : 22,284 = 22,284 : x
  2. Step 2: Convert to fraction form
    15,672/22,284 = 22,284/x
  3. Step 3: Cross multiply
    15,672x = 22,284 × 22,284
  4. Step 4: Simplify right side
    15,672x = 496,576,656
  5. Step 5: Solve for x
    x = 496,576,656/15,672
  6. Step 6: Final answer
    x = 31,685.60

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.