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Finding the Fourth Proportional to 17,393.80, 26,090.70 and 5,704.20

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Solution

The fourth proportional to 17,393.80, 26,090.70 and 5,704.20 is: 8,556.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,393.80 : 26,090.70 = 5,704.20 : x
  2. Step 2: Convert to fraction form
    17,393.80/26,090.70 = 5,704.20/x
  3. Step 3: Cross multiply
    17,393.80x = 26,090.70 × 5,704.20
  4. Step 4: Simplify right side
    17,393.80x = 148,826,570.94
  5. Step 5: Solve for x
    x = 148,826,570.94/17,393.80
  6. Step 6: Final answer
    x = 8,556.30

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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.