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Finding the Fourth Proportional to 7,093.54, 10,640.40 and 3,972.16

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Solution

The fourth proportional to 7,093.54, 10,640.40 and 3,972.16 is: 5,958.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,093.54 : 10,640.40 = 3,972.16 : x
  2. Step 2: Convert to fraction form
    7,093.54/10,640.40 = 3,972.16/x
  3. Step 3: Cross multiply
    7,093.54x = 10,640.40 × 3,972.16
  4. Step 4: Simplify right side
    7,093.54x = 42,265,371.26
  5. Step 5: Solve for x
    x = 42,265,371.26/7,093.54
  6. Step 6: Final answer
    x = 5,958.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.