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Finding the Fourth Proportional to 8,606.88, 12,909.33 and 2,684.22

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Solution

The fourth proportional to 8,606.88, 12,909.33 and 2,684.22 is: 4,026.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,606.88 : 12,909.33 = 2,684.22 : x
  2. Step 2: Convert to fraction form
    8,606.88/12,909.33 = 2,684.22/x
  3. Step 3: Cross multiply
    8,606.88x = 12,909.33 × 2,684.22
  4. Step 4: Simplify right side
    8,606.88x = 34,651,481.77
  5. Step 5: Solve for x
    x = 34,651,481.77/8,606.88
  6. Step 6: Final answer
    x = 4,026.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.