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Finding the Third Proportional to 1,670.25 and 3,605.63

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Solution

The third proportional to 1,670.25 and 3,605.63 is: 7,783.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,670.25 : 3,605.63 = 3,605.63 : x
  2. Step 2: Convert to fraction form
    1,670.25/3,605.63 = 3,605.63/x
  3. Step 3: Cross multiply
    1,670.25x = 3,605.63 × 3,605.63
  4. Step 4: Simplify right side
    1,670.25x = 13,000,531.64
  5. Step 5: Solve for x
    x = 13,000,531.64/1,670.25
  6. Step 6: Final answer
    x = 7,783.58

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.