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Finding the Fourth Proportional to 11,659.88, 16,090.16 and 6,354.58

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Solution

The fourth proportional to 11,659.88, 16,090.16 and 6,354.58 is: 8,769.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,659.88 : 16,090.16 = 6,354.58 : x
  2. Step 2: Convert to fraction form
    11,659.88/16,090.16 = 6,354.58/x
  3. Step 3: Cross multiply
    11,659.88x = 16,090.16 × 6,354.58
  4. Step 4: Simplify right side
    11,659.88x = 102,246,208.93
  5. Step 5: Solve for x
    x = 102,246,208.93/11,659.88
  6. Step 6: Final answer
    x = 8,769.06

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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.