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Finding the Third Proportional to 29,621 and 64,264

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Solution

The third proportional to 29,621 and 64,264 is: 139,423.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,621 : 64,264 = 64,264 : x
  2. Step 2: Convert to fraction form
    29,621/64,264 = 64,264/x
  3. Step 3: Cross multiply
    29,621x = 64,264 × 64,264
  4. Step 4: Simplify right side
    29,621x = 4,129,861,696
  5. Step 5: Solve for x
    x = 4,129,861,696/29,621
  6. Step 6: Final answer
    x = 139,423.44

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.