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Finding the Fourth Proportional to 11,998.94, 16,558.47 and 6,693.75

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Solution

The fourth proportional to 11,998.94, 16,558.47 and 6,693.75 is: 9,237.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,998.94 : 16,558.47 = 6,693.75 : x
  2. Step 2: Convert to fraction form
    11,998.94/16,558.47 = 6,693.75/x
  3. Step 3: Cross multiply
    11,998.94x = 16,558.47 × 6,693.75
  4. Step 4: Simplify right side
    11,998.94x = 110,838,258.56
  5. Step 5: Solve for x
    x = 110,838,258.56/11,998.94
  6. Step 6: Final answer
    x = 9,237.34

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Double scale
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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.