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Finding the Fourth Proportional to 23,481.80, 35,211.18 and 11,621.87

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Solution

The fourth proportional to 23,481.80, 35,211.18 and 11,621.87 is: 17,427.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,481.80 : 35,211.18 = 11,621.87 : x
  2. Step 2: Convert to fraction form
    23,481.80/35,211.18 = 11,621.87/x
  3. Step 3: Cross multiply
    23,481.80x = 35,211.18 × 11,621.87
  4. Step 4: Simplify right side
    23,481.80x = 409,219,756.51
  5. Step 5: Solve for x
    x = 409,219,756.51/23,481.80
  6. Step 6: Final answer
    x = 17,427.10

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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.