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Finding the Fourth Proportional to 29,173.80, 43,760.70 and 8,113.80

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Solution

The fourth proportional to 29,173.80, 43,760.70 and 8,113.80 is: 12,170.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,173.80 : 43,760.70 = 8,113.80 : x
  2. Step 2: Convert to fraction form
    29,173.80/43,760.70 = 8,113.80/x
  3. Step 3: Cross multiply
    29,173.80x = 43,760.70 × 8,113.80
  4. Step 4: Simplify right side
    29,173.80x = 355,065,567.66
  5. Step 5: Solve for x
    x = 355,065,567.66/29,173.80
  6. Step 6: Final answer
    x = 12,170.70

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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.