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Finding the Fourth Proportional to 13,524.66, 18,665.91 and 7,556.67

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Solution

The fourth proportional to 13,524.66, 18,665.91 and 7,556.67 is: 10,429.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,524.66 : 18,665.91 = 7,556.67 : x
  2. Step 2: Convert to fraction form
    13,524.66/18,665.91 = 7,556.67/x
  3. Step 3: Cross multiply
    13,524.66x = 18,665.91 × 7,556.67
  4. Step 4: Simplify right side
    13,524.66x = 141,052,122.12
  5. Step 5: Solve for x
    x = 141,052,122.12/13,524.66
  6. Step 6: Final answer
    x = 10,429.25

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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.