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Finding the Third Proportional to 30,628 and 63,224

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Solution

The third proportional to 30,628 and 63,224 is: 130,510.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,628 : 63,224 = 63,224 : x
  2. Step 2: Convert to fraction form
    30,628/63,224 = 63,224/x
  3. Step 3: Cross multiply
    30,628x = 63,224 × 63,224
  4. Step 4: Simplify right side
    30,628x = 3,997,274,176
  5. Step 5: Solve for x
    x = 3,997,274,176/30,628
  6. Step 6: Final answer
    x = 130,510.45

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.