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Finding the Fourth Proportional to 3,893.75, 5,373.38 and 2,496.50

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Solution

The fourth proportional to 3,893.75, 5,373.38 and 2,496.50 is: 3,445.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,893.75 : 5,373.38 = 2,496.50 : x
  2. Step 2: Convert to fraction form
    3,893.75/5,373.38 = 2,496.50/x
  3. Step 3: Cross multiply
    3,893.75x = 5,373.38 × 2,496.50
  4. Step 4: Simplify right side
    3,893.75x = 13,414,643.17
  5. Step 5: Solve for x
    x = 13,414,643.17/3,893.75
  6. Step 6: Final answer
    x = 3,445.17

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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.