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Finding the Fourth Proportional to 29,644.80, 44,445.60 and 12,105.60

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Solution

The fourth proportional to 29,644.80, 44,445.60 and 12,105.60 is: 18,149.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,644.80 : 44,445.60 = 12,105.60 : x
  2. Step 2: Convert to fraction form
    29,644.80/44,445.60 = 12,105.60/x
  3. Step 3: Cross multiply
    29,644.80x = 44,445.60 × 12,105.60
  4. Step 4: Simplify right side
    29,644.80x = 538,040,655.36
  5. Step 5: Solve for x
    x = 538,040,655.36/29,644.80
  6. Step 6: Final answer
    x = 18,149.58

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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.