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Finding the Third Proportional to 19,539 and 30,276

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Solution

The third proportional to 19,539 and 30,276 is: 46,913.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,539 : 30,276 = 30,276 : x
  2. Step 2: Convert to fraction form
    19,539/30,276 = 30,276/x
  3. Step 3: Cross multiply
    19,539x = 30,276 × 30,276
  4. Step 4: Simplify right side
    19,539x = 916,636,176
  5. Step 5: Solve for x
    x = 916,636,176/19,539
  6. Step 6: Final answer
    x = 46,913.16

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.