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Finding the Fourth Proportional to 7,213.64, 9,954.60 and 4,026.77

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Solution

The fourth proportional to 7,213.64, 9,954.60 and 4,026.77 is: 5,556.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,213.64 : 9,954.60 = 4,026.77 : x
  2. Step 2: Convert to fraction form
    7,213.64/9,954.60 = 4,026.77/x
  3. Step 3: Cross multiply
    7,213.64x = 9,954.60 × 4,026.77
  4. Step 4: Simplify right side
    7,213.64x = 40,084,834.87
  5. Step 5: Solve for x
    x = 40,084,834.87/7,213.64
  6. Step 6: Final answer
    x = 5,556.81

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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.