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Finding the Fourth Proportional to 11,750.78, 16,202.79 and 7,496.15

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Solution

The fourth proportional to 11,750.78, 16,202.79 and 7,496.15 is: 10,336.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,750.78 : 16,202.79 = 7,496.15 : x
  2. Step 2: Convert to fraction form
    11,750.78/16,202.79 = 7,496.15/x
  3. Step 3: Cross multiply
    11,750.78x = 16,202.79 × 7,496.15
  4. Step 4: Simplify right side
    11,750.78x = 121,458,544.26
  5. Step 5: Solve for x
    x = 121,458,544.26/11,750.78
  6. Step 6: Final answer
    x = 10,336.21

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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.