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Finding the Fourth Proportional to 23,887.64, 35,836.84 and 8,091.78

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Solution

The fourth proportional to 23,887.64, 35,836.84 and 8,091.78 is: 12,139.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,887.64 : 35,836.84 = 8,091.78 : x
  2. Step 2: Convert to fraction form
    23,887.64/35,836.84 = 8,091.78/x
  3. Step 3: Cross multiply
    23,887.64x = 35,836.84 × 8,091.78
  4. Step 4: Simplify right side
    23,887.64x = 289,983,825.18
  5. Step 5: Solve for x
    x = 289,983,825.18/23,887.64
  6. Step 6: Final answer
    x = 12,139.49

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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.