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Finding the Fourth Proportional to 11,425.86, 17,128.11 and 4,026.18

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Solution

The fourth proportional to 11,425.86, 17,128.11 and 4,026.18 is: 6,035.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,425.86 : 17,128.11 = 4,026.18 : x
  2. Step 2: Convert to fraction form
    11,425.86/17,128.11 = 4,026.18/x
  3. Step 3: Cross multiply
    11,425.86x = 17,128.11 × 4,026.18
  4. Step 4: Simplify right side
    11,425.86x = 68,960,853.92
  5. Step 5: Solve for x
    x = 68,960,853.92/11,425.86
  6. Step 6: Final answer
    x = 6,035.51

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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.