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Finding the Fourth Proportional to 8,273.99, 11,419.17 and 6,281.12

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Solution

The fourth proportional to 8,273.99, 11,419.17 and 6,281.12 is: 8,668.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,273.99 : 11,419.17 = 6,281.12 : x
  2. Step 2: Convert to fraction form
    8,273.99/11,419.17 = 6,281.12/x
  3. Step 3: Cross multiply
    8,273.99x = 11,419.17 × 6,281.12
  4. Step 4: Simplify right side
    8,273.99x = 71,725,177.07
  5. Step 5: Solve for x
    x = 71,725,177.07/8,273.99
  6. Step 6: Final answer
    x = 8,668.75

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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.