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Finding the Third Proportional to 469 and 947

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Solution

The third proportional to 469 and 947 is: 1,912.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    469 : 947 = 947 : x
  2. Step 2: Convert to fraction form
    469/947 = 947/x
  3. Step 3: Cross multiply
    469x = 947 × 947
  4. Step 4: Simplify right side
    469x = 896,809
  5. Step 5: Solve for x
    x = 896,809/469
  6. Step 6: Final answer
    x = 1,912.17

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Why These Related Problems?

These problems maintain the same ratio (2.02) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.