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Finding the Fourth Proportional to 8,341.25, 11,449.60 and 7,375.88

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Solution

The fourth proportional to 8,341.25, 11,449.60 and 7,375.88 is: 10,124.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,341.25 : 11,449.60 = 7,375.88 : x
  2. Step 2: Convert to fraction form
    8,341.25/11,449.60 = 7,375.88/x
  3. Step 3: Cross multiply
    8,341.25x = 11,449.60 × 7,375.88
  4. Step 4: Simplify right side
    8,341.25x = 84,450,885.83
  5. Step 5: Solve for x
    x = 84,450,885.83/8,341.25
  6. Step 6: Final answer
    x = 10,124.49

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Half scale
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Double scale
Find fourth proportional to 8,342.25, 11,450.97 and 7,376.88
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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.