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Finding the Fourth Proportional to 29,294.18, 43,940.88 and 7,107.74

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Solution

The fourth proportional to 29,294.18, 43,940.88 and 7,107.74 is: 10,661.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,294.18 : 43,940.88 = 7,107.74 : x
  2. Step 2: Convert to fraction form
    29,294.18/43,940.88 = 7,107.74/x
  3. Step 3: Cross multiply
    29,294.18x = 43,940.88 × 7,107.74
  4. Step 4: Simplify right side
    29,294.18x = 312,320,350.41
  5. Step 5: Solve for x
    x = 312,320,350.41/29,294.18
  6. Step 6: Final answer
    x = 10,661.52

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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.