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Finding the Fourth Proportional to 3,953.07, 5,455.76 and 3,823.26

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Solution

The fourth proportional to 3,953.07, 5,455.76 and 3,823.26 is: 5,276.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,953.07 : 5,455.76 = 3,823.26 : x
  2. Step 2: Convert to fraction form
    3,953.07/5,455.76 = 3,823.26/x
  3. Step 3: Cross multiply
    3,953.07x = 5,455.76 × 3,823.26
  4. Step 4: Simplify right side
    3,953.07x = 20,858,788.98
  5. Step 5: Solve for x
    x = 20,858,788.98/3,953.07
  6. Step 6: Final answer
    x = 5,276.61

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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.