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Finding the Fourth Proportional to 7,843.04, 10,813.56 and 5,743.52

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Solution

The fourth proportional to 7,843.04, 10,813.56 and 5,743.52 is: 7,918.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,843.04 : 10,813.56 = 5,743.52 : x
  2. Step 2: Convert to fraction form
    7,843.04/10,813.56 = 5,743.52/x
  3. Step 3: Cross multiply
    7,843.04x = 10,813.56 × 5,743.52
  4. Step 4: Simplify right side
    7,843.04x = 62,107,898.13
  5. Step 5: Solve for x
    x = 62,107,898.13/7,843.04
  6. Step 6: Final answer
    x = 7,918.86

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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.