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Finding the Fourth Proportional to 1,352.63, 1,865.97 and 792.75

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Solution

The fourth proportional to 1,352.63, 1,865.97 and 792.75 is: 1,093.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,352.63 : 1,865.97 = 792.75 : x
  2. Step 2: Convert to fraction form
    1,352.63/1,865.97 = 792.75/x
  3. Step 3: Cross multiply
    1,352.63x = 1,865.97 × 792.75
  4. Step 4: Simplify right side
    1,352.63x = 1,479,238.39
  5. Step 5: Solve for x
    x = 1,479,238.39/1,352.63
  6. Step 6: Final answer
    x = 1,093.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.