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Finding the Fourth Proportional to 29,672.60, 44,525.40 and 12,141.20

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Solution

The fourth proportional to 29,672.60, 44,525.40 and 12,141.20 is: 18,218.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,672.60 : 44,525.40 = 12,141.20 : x
  2. Step 2: Convert to fraction form
    29,672.60/44,525.40 = 12,141.20/x
  3. Step 3: Cross multiply
    29,672.60x = 44,525.40 × 12,141.20
  4. Step 4: Simplify right side
    29,672.60x = 540,591,786.48
  5. Step 5: Solve for x
    x = 540,591,786.48/29,672.60
  6. Step 6: Final answer
    x = 18,218.55

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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.