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Finding the Fourth Proportional to 15,024.88, 20,735.12 and 8,652.43

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Solution

The fourth proportional to 15,024.88, 20,735.12 and 8,652.43 is: 11,940.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,024.88 : 20,735.12 = 8,652.43 : x
  2. Step 2: Convert to fraction form
    15,024.88/20,735.12 = 8,652.43/x
  3. Step 3: Cross multiply
    15,024.88x = 20,735.12 × 8,652.43
  4. Step 4: Simplify right side
    15,024.88x = 179,409,174.34
  5. Step 5: Solve for x
    x = 179,409,174.34/15,024.88
  6. Step 6: Final answer
    x = 11,940.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.