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Finding the Third Proportional to 3,020 and 6,312

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Solution

The third proportional to 3,020 and 6,312 is: 13,192.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,020 : 6,312 = 6,312 : x
  2. Step 2: Convert to fraction form
    3,020/6,312 = 6,312/x
  3. Step 3: Cross multiply
    3,020x = 6,312 × 6,312
  4. Step 4: Simplify right side
    3,020x = 39,841,344
  5. Step 5: Solve for x
    x = 39,841,344/3,020
  6. Step 6: Final answer
    x = 13,192.50

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.