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Finding the Fourth Proportional to 3,893.51, 5,372.87 and 2,401.58

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Solution

The fourth proportional to 3,893.51, 5,372.87 and 2,401.58 is: 3,314.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,893.51 : 5,372.87 = 2,401.58 : x
  2. Step 2: Convert to fraction form
    3,893.51/5,372.87 = 2,401.58/x
  3. Step 3: Cross multiply
    3,893.51x = 5,372.87 × 2,401.58
  4. Step 4: Simplify right side
    3,893.51x = 12,903,378.56
  5. Step 5: Solve for x
    x = 12,903,378.56/3,893.51
  6. Step 6: Final answer
    x = 3,314.07

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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.