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Finding the Third Proportional to 30,670 and 43,492

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Solution

The third proportional to 30,670 and 43,492 is: 61,674.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,670 : 43,492 = 43,492 : x
  2. Step 2: Convert to fraction form
    30,670/43,492 = 43,492/x
  3. Step 3: Cross multiply
    30,670x = 43,492 × 43,492
  4. Step 4: Simplify right side
    30,670x = 1,891,554,064
  5. Step 5: Solve for x
    x = 1,891,554,064/30,670
  6. Step 6: Final answer
    x = 61,674.41

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.