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Finding the Fourth Proportional to 8,845.88, 12,203.22 and 7,838.60

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Solution

The fourth proportional to 8,845.88, 12,203.22 and 7,838.60 is: 10,813.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,845.88 : 12,203.22 = 7,838.60 : x
  2. Step 2: Convert to fraction form
    8,845.88/12,203.22 = 7,838.60/x
  3. Step 3: Cross multiply
    8,845.88x = 12,203.22 × 7,838.60
  4. Step 4: Simplify right side
    8,845.88x = 95,656,160.29
  5. Step 5: Solve for x
    x = 95,656,160.29/8,845.88
  6. Step 6: Final answer
    x = 10,813.64

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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.