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Finding the Fourth Proportional to 7,843.23, 10,823.62 and 4,306.41

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Solution

The fourth proportional to 7,843.23, 10,823.62 and 4,306.41 is: 5,942.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,843.23 : 10,823.62 = 4,306.41 : x
  2. Step 2: Convert to fraction form
    7,843.23/10,823.62 = 4,306.41/x
  3. Step 3: Cross multiply
    7,843.23x = 10,823.62 × 4,306.41
  4. Step 4: Simplify right side
    7,843.23x = 46,610,945.40
  5. Step 5: Solve for x
    x = 46,610,945.40/7,843.23
  6. Step 6: Final answer
    x = 5,942.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.