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Finding the Third Proportional to 7,074 and 12,798

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Solution

The third proportional to 7,074 and 12,798 is: 23,153.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,074 : 12,798 = 12,798 : x
  2. Step 2: Convert to fraction form
    7,074/12,798 = 12,798/x
  3. Step 3: Cross multiply
    7,074x = 12,798 × 12,798
  4. Step 4: Simplify right side
    7,074x = 163,788,804
  5. Step 5: Solve for x
    x = 163,788,804/7,074
  6. Step 6: Final answer
    x = 23,153.63

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Why These Related Problems?

These problems maintain the same ratio (1.81) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.