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Finding the Fourth Proportional to 29,100.40, 43,672.20 and 11,582.80

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Solution

The fourth proportional to 29,100.40, 43,672.20 and 11,582.80 is: 17,382.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,100.40 : 43,672.20 = 11,582.80 : x
  2. Step 2: Convert to fraction form
    29,100.40/43,672.20 = 11,582.80/x
  3. Step 3: Cross multiply
    29,100.40x = 43,672.20 × 11,582.80
  4. Step 4: Simplify right side
    29,100.40x = 505,846,358.16
  5. Step 5: Solve for x
    x = 505,846,358.16/29,100.40
  6. Step 6: Final answer
    x = 17,382.80

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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.