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Finding the Fourth Proportional to 14,920.20, 22,404.60 and 10,789.20

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Solution

The fourth proportional to 14,920.20, 22,404.60 and 10,789.20 is: 16,201.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,920.20 : 22,404.60 = 10,789.20 : x
  2. Step 2: Convert to fraction form
    14,920.20/22,404.60 = 10,789.20/x
  3. Step 3: Cross multiply
    14,920.20x = 22,404.60 × 10,789.20
  4. Step 4: Simplify right side
    14,920.20x = 241,727,710.32
  5. Step 5: Solve for x
    x = 241,727,710.32/14,920.20
  6. Step 6: Final answer
    x = 16,201.37

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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.