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Finding the Third Proportional to 1,764 and 4,342.50

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Solution

The third proportional to 1,764 and 4,342.50 is: 10,690.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,764 : 4,342.50 = 4,342.50 : x
  2. Step 2: Convert to fraction form
    1,764/4,342.50 = 4,342.50/x
  3. Step 3: Cross multiply
    1,764x = 4,342.50 × 4,342.50
  4. Step 4: Simplify right side
    1,764x = 18,857,306.25
  5. Step 5: Solve for x
    x = 18,857,306.25/1,764
  6. Step 6: Final answer
    x = 10,690.08

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Why These Related Problems?

These problems maintain the same ratio (2.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.