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Finding the Third Proportional to 859.75 and 1,253.63

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Solution

The third proportional to 859.75 and 1,253.63 is: 1,827.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    859.75 : 1,253.63 = 1,253.63 : x
  2. Step 2: Convert to fraction form
    859.75/1,253.63 = 1,253.63/x
  3. Step 3: Cross multiply
    859.75x = 1,253.63 × 1,253.63
  4. Step 4: Simplify right side
    859.75x = 1,571,575.64
  5. Step 5: Solve for x
    x = 1,571,575.64/859.75
  6. Step 6: Final answer
    x = 1,827.94

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.