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Finding the Fourth Proportional to 23,905.60, 35,843.76 and 9,861.28

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Solution

The fourth proportional to 23,905.60, 35,843.76 and 9,861.28 is: 14,785.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,905.60 : 35,843.76 = 9,861.28 : x
  2. Step 2: Convert to fraction form
    23,905.60/35,843.76 = 9,861.28/x
  3. Step 3: Cross multiply
    23,905.60x = 35,843.76 × 9,861.28
  4. Step 4: Simplify right side
    23,905.60x = 353,465,353.61
  5. Step 5: Solve for x
    x = 353,465,353.61/23,905.60
  6. Step 6: Final answer
    x = 14,785.88

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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.