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Finding the Fourth Proportional to 8,663.01, 11,956.81 and 5,474.28

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Solution

The fourth proportional to 8,663.01, 11,956.81 and 5,474.28 is: 7,555.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,663.01 : 11,956.81 = 5,474.28 : x
  2. Step 2: Convert to fraction form
    8,663.01/11,956.81 = 5,474.28/x
  3. Step 3: Cross multiply
    8,663.01x = 11,956.81 × 5,474.28
  4. Step 4: Simplify right side
    8,663.01x = 65,454,900.01
  5. Step 5: Solve for x
    x = 65,454,900.01/8,663.01
  6. Step 6: Final answer
    x = 7,555.67

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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.