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Finding the Fourth Proportional to 14,001.54, 20,998.20 and 5,234.40

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Solution

The fourth proportional to 14,001.54, 20,998.20 and 5,234.40 is: 7,850.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,001.54 : 20,998.20 = 5,234.40 : x
  2. Step 2: Convert to fraction form
    14,001.54/20,998.20 = 5,234.40/x
  3. Step 3: Cross multiply
    14,001.54x = 20,998.20 × 5,234.40
  4. Step 4: Simplify right side
    14,001.54x = 109,912,978.08
  5. Step 5: Solve for x
    x = 109,912,978.08/14,001.54
  6. Step 6: Final answer
    x = 7,850.06

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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.