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Finding the Fourth Proportional to 10,375.26, 15,525.87 and 8,308.54

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Solution

The fourth proportional to 10,375.26, 15,525.87 and 8,308.54 is: 12,433.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,375.26 : 15,525.87 = 8,308.54 : x
  2. Step 2: Convert to fraction form
    10,375.26/15,525.87 = 8,308.54/x
  3. Step 3: Cross multiply
    10,375.26x = 15,525.87 × 8,308.54
  4. Step 4: Simplify right side
    10,375.26x = 128,997,311.93
  5. Step 5: Solve for x
    x = 128,997,311.93/10,375.26
  6. Step 6: Final answer
    x = 12,433.16

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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.