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Finding the Fourth Proportional to 12,659.94, 18,994.01 and 6,086.63

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Solution

The fourth proportional to 12,659.94, 18,994.01 and 6,086.63 is: 9,131.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,659.94 : 18,994.01 = 6,086.63 : x
  2. Step 2: Convert to fraction form
    12,659.94/18,994.01 = 6,086.63/x
  3. Step 3: Cross multiply
    12,659.94x = 18,994.01 × 6,086.63
  4. Step 4: Simplify right side
    12,659.94x = 115,609,385.68
  5. Step 5: Solve for x
    x = 115,609,385.68/12,659.94
  6. Step 6: Final answer
    x = 9,131.91

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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.