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Finding the Fourth Proportional to 3,904.54, 5,390.22 and 2,652.22

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Solution

The fourth proportional to 3,904.54, 5,390.22 and 2,652.22 is: 3,661.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,904.54 : 5,390.22 = 2,652.22 : x
  2. Step 2: Convert to fraction form
    3,904.54/5,390.22 = 2,652.22/x
  3. Step 3: Cross multiply
    3,904.54x = 5,390.22 × 2,652.22
  4. Step 4: Simplify right side
    3,904.54x = 14,296,049.29
  5. Step 5: Solve for x
    x = 14,296,049.29/3,904.54
  6. Step 6: Final answer
    x = 3,661.39

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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.