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Finding the Fourth Proportional to 8,342.60, 11,512.13 and 4,806.09

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Solution

The fourth proportional to 8,342.60, 11,512.13 and 4,806.09 is: 6,632.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,342.60 : 11,512.13 = 4,806.09 : x
  2. Step 2: Convert to fraction form
    8,342.60/11,512.13 = 4,806.09/x
  3. Step 3: Cross multiply
    8,342.60x = 11,512.13 × 4,806.09
  4. Step 4: Simplify right side
    8,342.60x = 55,328,308.84
  5. Step 5: Solve for x
    x = 55,328,308.84/8,342.60
  6. Step 6: Final answer
    x = 6,632.03

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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.