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Finding the Third Proportional to 29,220 and 61,356

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Solution

The third proportional to 29,220 and 61,356 is: 128,835.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,220 : 61,356 = 61,356 : x
  2. Step 2: Convert to fraction form
    29,220/61,356 = 61,356/x
  3. Step 3: Cross multiply
    29,220x = 61,356 × 61,356
  4. Step 4: Simplify right side
    29,220x = 3,764,558,736
  5. Step 5: Solve for x
    x = 3,764,558,736/29,220
  6. Step 6: Final answer
    x = 128,835.00

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.