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Finding the Fourth Proportional to 23,990.64, 35,964.18 and 8,399.76

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Solution

The fourth proportional to 23,990.64, 35,964.18 and 8,399.76 is: 12,592.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,990.64 : 35,964.18 = 8,399.76 : x
  2. Step 2: Convert to fraction form
    23,990.64/35,964.18 = 8,399.76/x
  3. Step 3: Cross multiply
    23,990.64x = 35,964.18 × 8,399.76
  4. Step 4: Simplify right side
    23,990.64x = 302,090,480.60
  5. Step 5: Solve for x
    x = 302,090,480.60/23,990.64
  6. Step 6: Final answer
    x = 12,592.01

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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.