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Finding the Third Proportional to 1,972 and 4,300

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Solution

The third proportional to 1,972 and 4,300 is: 9,376.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,972 : 4,300 = 4,300 : x
  2. Step 2: Convert to fraction form
    1,972/4,300 = 4,300/x
  3. Step 3: Cross multiply
    1,972x = 4,300 × 4,300
  4. Step 4: Simplify right side
    1,972x = 18,490,000
  5. Step 5: Solve for x
    x = 18,490,000/1,972
  6. Step 6: Final answer
    x = 9,376.27

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.