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Finding the Fourth Proportional to 5,663.85, 7,816.17 and 3,305.54

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Solution

The fourth proportional to 5,663.85, 7,816.17 and 3,305.54 is: 4,561.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,663.85 : 7,816.17 = 3,305.54 : x
  2. Step 2: Convert to fraction form
    5,663.85/7,816.17 = 3,305.54/x
  3. Step 3: Cross multiply
    5,663.85x = 7,816.17 × 3,305.54
  4. Step 4: Simplify right side
    5,663.85x = 25,836,606.97
  5. Step 5: Solve for x
    x = 25,836,606.97/5,663.85
  6. Step 6: Final answer
    x = 4,561.67

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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.