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Finding the Fourth Proportional to 25,832.64, 38,745.28 and 8,300.20

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Solution

The fourth proportional to 25,832.64, 38,745.28 and 8,300.20 is: 12,449.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,832.64 : 38,745.28 = 8,300.20 : x
  2. Step 2: Convert to fraction form
    25,832.64/38,745.28 = 8,300.20/x
  3. Step 3: Cross multiply
    25,832.64x = 38,745.28 × 8,300.20
  4. Step 4: Simplify right side
    25,832.64x = 321,593,573.06
  5. Step 5: Solve for x
    x = 321,593,573.06/25,832.64
  6. Step 6: Final answer
    x = 12,449.12

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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.