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Finding the Third Proportional to 670.13 and 992.06

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Solution

The third proportional to 670.13 and 992.06 is: 1,468.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    670.13 : 992.06 = 992.06 : x
  2. Step 2: Convert to fraction form
    670.13/992.06 = 992.06/x
  3. Step 3: Cross multiply
    670.13x = 992.06 × 992.06
  4. Step 4: Simplify right side
    670.13x = 984,188.00
  5. Step 5: Solve for x
    x = 984,188.00/670.13
  6. Step 6: Final answer
    x = 1,468.66

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.