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Finding the Third Proportional to 30,128 and 44,320

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Solution

The third proportional to 30,128 and 44,320 is: 65,197.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,128 : 44,320 = 44,320 : x
  2. Step 2: Convert to fraction form
    30,128/44,320 = 44,320/x
  3. Step 3: Cross multiply
    30,128x = 44,320 × 44,320
  4. Step 4: Simplify right side
    30,128x = 1,964,262,400
  5. Step 5: Solve for x
    x = 1,964,262,400/30,128
  6. Step 6: Final answer
    x = 65,197.24

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.