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Finding the Third Proportional to 38,480 and 56,336

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Solution

The third proportional to 38,480 and 56,336 is: 82,477.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,480 : 56,336 = 56,336 : x
  2. Step 2: Convert to fraction form
    38,480/56,336 = 56,336/x
  3. Step 3: Cross multiply
    38,480x = 56,336 × 56,336
  4. Step 4: Simplify right side
    38,480x = 3,173,744,896
  5. Step 5: Solve for x
    x = 3,173,744,896/38,480
  6. Step 6: Final answer
    x = 82,477.78

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.