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Finding the Fourth Proportional to 25,891.54, 38,825.04 and 9,018.67

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Solution

The fourth proportional to 25,891.54, 38,825.04 and 9,018.67 is: 13,523.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,891.54 : 38,825.04 = 9,018.67 : x
  2. Step 2: Convert to fraction form
    25,891.54/38,825.04 = 9,018.67/x
  3. Step 3: Cross multiply
    25,891.54x = 38,825.04 × 9,018.67
  4. Step 4: Simplify right side
    25,891.54x = 350,150,029.37
  5. Step 5: Solve for x
    x = 350,150,029.37/25,891.54
  6. Step 6: Final answer
    x = 13,523.72

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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.