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Finding the Fourth Proportional to 15,443.61, 23,163.26 and 4,913.61

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Solution

The fourth proportional to 15,443.61, 23,163.26 and 4,913.61 is: 7,369.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,443.61 : 23,163.26 = 4,913.61 : x
  2. Step 2: Convert to fraction form
    15,443.61/23,163.26 = 4,913.61/x
  3. Step 3: Cross multiply
    15,443.61x = 23,163.26 × 4,913.61
  4. Step 4: Simplify right side
    15,443.61x = 113,815,201.40
  5. Step 5: Solve for x
    x = 113,815,201.40/15,443.61
  6. Step 6: Final answer
    x = 7,369.73

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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.