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Finding the Third Proportional to 434.50 and 959

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Solution

The third proportional to 434.50 and 959 is: 2,116.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    434.50 : 959 = 959 : x
  2. Step 2: Convert to fraction form
    434.50/959 = 959/x
  3. Step 3: Cross multiply
    434.50x = 959 × 959
  4. Step 4: Simplify right side
    434.50x = 919,681
  5. Step 5: Solve for x
    x = 919,681/434.50
  6. Step 6: Final answer
    x = 2,116.64

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.