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Finding the Fourth Proportional to 29,124.80, 43,687.20 and 8,064.80

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Solution

The fourth proportional to 29,124.80, 43,687.20 and 8,064.80 is: 12,097.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,124.80 : 43,687.20 = 8,064.80 : x
  2. Step 2: Convert to fraction form
    29,124.80/43,687.20 = 8,064.80/x
  3. Step 3: Cross multiply
    29,124.80x = 43,687.20 × 8,064.80
  4. Step 4: Simplify right side
    29,124.80x = 352,328,530.56
  5. Step 5: Solve for x
    x = 352,328,530.56/29,124.80
  6. Step 6: Final answer
    x = 12,097.20

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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.