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Finding the Fourth Proportional to 11,031.05, 15,223 and 5,995.35

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Solution

The fourth proportional to 11,031.05, 15,223 and 5,995.35 is: 8,273.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,031.05 : 15,223 = 5,995.35 : x
  2. Step 2: Convert to fraction form
    11,031.05/15,223 = 5,995.35/x
  3. Step 3: Cross multiply
    11,031.05x = 15,223 × 5,995.35
  4. Step 4: Simplify right side
    11,031.05x = 91,267,213.05
  5. Step 5: Solve for x
    x = 91,267,213.05/11,031.05
  6. Step 6: Final answer
    x = 8,273.67

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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.