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Finding the Fourth Proportional to 10,955.44, 16,435.60 and 3,163.60

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Solution

The fourth proportional to 10,955.44, 16,435.60 and 3,163.60 is: 4,746.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,955.44 : 16,435.60 = 3,163.60 : x
  2. Step 2: Convert to fraction form
    10,955.44/16,435.60 = 3,163.60/x
  3. Step 3: Cross multiply
    10,955.44x = 16,435.60 × 3,163.60
  4. Step 4: Simplify right side
    10,955.44x = 51,995,664.16
  5. Step 5: Solve for x
    x = 51,995,664.16/10,955.44
  6. Step 6: Final answer
    x = 4,746.10

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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.