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Finding the Fourth Proportional to 25,929.56, 38,902.46 and 9,289.28

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Solution

The fourth proportional to 25,929.56, 38,902.46 and 9,289.28 is: 13,936.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,929.56 : 38,902.46 = 9,289.28 : x
  2. Step 2: Convert to fraction form
    25,929.56/38,902.46 = 9,289.28/x
  3. Step 3: Cross multiply
    25,929.56x = 38,902.46 × 9,289.28
  4. Step 4: Simplify right side
    25,929.56x = 361,375,843.63
  5. Step 5: Solve for x
    x = 361,375,843.63/25,929.56
  6. Step 6: Final answer
    x = 13,936.83

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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.