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Finding the Fourth Proportional to 13,082.46, 18,054.27 and 7,494.54

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Solution

The fourth proportional to 13,082.46, 18,054.27 and 7,494.54 is: 10,342.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,082.46 : 18,054.27 = 7,494.54 : x
  2. Step 2: Convert to fraction form
    13,082.46/18,054.27 = 7,494.54/x
  3. Step 3: Cross multiply
    13,082.46x = 18,054.27 × 7,494.54
  4. Step 4: Simplify right side
    13,082.46x = 135,308,448.69
  5. Step 5: Solve for x
    x = 135,308,448.69/13,082.46
  6. Step 6: Final answer
    x = 10,342.74

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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.