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Finding the Fourth Proportional to 5,255.94, 7,873.35 and 2,615.48

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Solution

The fourth proportional to 5,255.94, 7,873.35 and 2,615.48 is: 3,917.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,255.94 : 7,873.35 = 2,615.48 : x
  2. Step 2: Convert to fraction form
    5,255.94/7,873.35 = 2,615.48/x
  3. Step 3: Cross multiply
    5,255.94x = 7,873.35 × 2,615.48
  4. Step 4: Simplify right side
    5,255.94x = 20,592,589.46
  5. Step 5: Solve for x
    x = 20,592,589.46/5,255.94
  6. Step 6: Final answer
    x = 3,917.97

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1.5x scale

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.