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Finding the Fourth Proportional to 8,412.60, 11,525.31 and 8,097.31

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Solution

The fourth proportional to 8,412.60, 11,525.31 and 8,097.31 is: 11,093.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,412.60 : 11,525.31 = 8,097.31 : x
  2. Step 2: Convert to fraction form
    8,412.60/11,525.31 = 8,097.31/x
  3. Step 3: Cross multiply
    8,412.60x = 11,525.31 × 8,097.31
  4. Step 4: Simplify right side
    8,412.60x = 93,324,007.92
  5. Step 5: Solve for x
    x = 93,324,007.92/8,412.60
  6. Step 6: Final answer
    x = 11,093.36

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Half scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.