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Finding the Fourth Proportional to 17,103.36, 25,620.90 and 11,242.20

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Solution

The fourth proportional to 17,103.36, 25,620.90 and 11,242.20 is: 16,840.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,103.36 : 25,620.90 = 11,242.20 : x
  2. Step 2: Convert to fraction form
    17,103.36/25,620.90 = 11,242.20/x
  3. Step 3: Cross multiply
    17,103.36x = 25,620.90 × 11,242.20
  4. Step 4: Simplify right side
    17,103.36x = 288,035,281.98
  5. Step 5: Solve for x
    x = 288,035,281.98/17,103.36
  6. Step 6: Final answer
    x = 16,840.86

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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.