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Finding the Fourth Proportional to 7,945.36, 11,014.81 and 7,524.07

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Solution

The fourth proportional to 7,945.36, 11,014.81 and 7,524.07 is: 10,430.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,945.36 : 11,014.81 = 7,524.07 : x
  2. Step 2: Convert to fraction form
    7,945.36/11,014.81 = 7,524.07/x
  3. Step 3: Cross multiply
    7,945.36x = 11,014.81 × 7,524.07
  4. Step 4: Simplify right side
    7,945.36x = 82,876,155.13
  5. Step 5: Solve for x
    x = 82,876,155.13/7,945.36
  6. Step 6: Final answer
    x = 10,430.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.