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Finding the Fourth Proportional to 8,636.22, 11,911.86 and 5,984.48

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Solution

The fourth proportional to 8,636.22, 11,911.86 and 5,984.48 is: 8,254.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,636.22 : 11,911.86 = 5,984.48 : x
  2. Step 2: Convert to fraction form
    8,636.22/11,911.86 = 5,984.48/x
  3. Step 3: Cross multiply
    8,636.22x = 11,911.86 × 5,984.48
  4. Step 4: Simplify right side
    8,636.22x = 71,286,317.71
  5. Step 5: Solve for x
    x = 71,286,317.71/8,636.22
  6. Step 6: Final answer
    x = 8,254.34

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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.