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Finding the Fourth Proportional to 3,954.52, 5,457.15 and 2,822.26

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Solution

The fourth proportional to 3,954.52, 5,457.15 and 2,822.26 is: 3,894.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,954.52 : 5,457.15 = 2,822.26 : x
  2. Step 2: Convert to fraction form
    3,954.52/5,457.15 = 2,822.26/x
  3. Step 3: Cross multiply
    3,954.52x = 5,457.15 × 2,822.26
  4. Step 4: Simplify right side
    3,954.52x = 15,401,496.16
  5. Step 5: Solve for x
    x = 15,401,496.16/3,954.52
  6. Step 6: Final answer
    x = 3,894.66

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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.