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Finding the Third Proportional to 6,090 and 7,998

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Solution

The third proportional to 6,090 and 7,998 is: 10,503.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,090 : 7,998 = 7,998 : x
  2. Step 2: Convert to fraction form
    6,090/7,998 = 7,998/x
  3. Step 3: Cross multiply
    6,090x = 7,998 × 7,998
  4. Step 4: Simplify right side
    6,090x = 63,968,004
  5. Step 5: Solve for x
    x = 63,968,004/6,090
  6. Step 6: Final answer
    x = 10,503.78

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Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.