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Finding the Fourth Proportional to 1,717.35, 2,575.61 and 792.33

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Solution

The fourth proportional to 1,717.35, 2,575.61 and 792.33 is: 1,188.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,717.35 : 2,575.61 = 792.33 : x
  2. Step 2: Convert to fraction form
    1,717.35/2,575.61 = 792.33/x
  3. Step 3: Cross multiply
    1,717.35x = 2,575.61 × 792.33
  4. Step 4: Simplify right side
    1,717.35x = 2,040,733.07
  5. Step 5: Solve for x
    x = 2,040,733.07/1,717.35
  6. Step 6: Final answer
    x = 1,188.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.