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Finding the Fourth Proportional to 11,917.88, 17,796.54 and 9,730.88

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Solution

The fourth proportional to 11,917.88, 17,796.54 and 9,730.88 is: 14,530.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,917.88 : 17,796.54 = 9,730.88 : x
  2. Step 2: Convert to fraction form
    11,917.88/17,796.54 = 9,730.88/x
  3. Step 3: Cross multiply
    11,917.88x = 17,796.54 × 9,730.88
  4. Step 4: Simplify right side
    11,917.88x = 173,175,995.16
  5. Step 5: Solve for x
    x = 173,175,995.16/11,917.88
  6. Step 6: Final answer
    x = 14,530.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.