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Finding the Fourth Proportional to 23,481.42, 35,223.74 and 8,690.01

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Solution

The fourth proportional to 23,481.42, 35,223.74 and 8,690.01 is: 13,035.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,481.42 : 35,223.74 = 8,690.01 : x
  2. Step 2: Convert to fraction form
    23,481.42/35,223.74 = 8,690.01/x
  3. Step 3: Cross multiply
    23,481.42x = 35,223.74 × 8,690.01
  4. Step 4: Simplify right side
    23,481.42x = 306,094,652.84
  5. Step 5: Solve for x
    x = 306,094,652.84/23,481.42
  6. Step 6: Final answer
    x = 13,035.61

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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.