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Finding the Fourth Proportional to 18,157.32, 27,246.42 and 7,626.42

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Solution

The fourth proportional to 18,157.32, 27,246.42 and 7,626.42 is: 11,444.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,157.32 : 27,246.42 = 7,626.42 : x
  2. Step 2: Convert to fraction form
    18,157.32/27,246.42 = 7,626.42/x
  3. Step 3: Cross multiply
    18,157.32x = 27,246.42 × 7,626.42
  4. Step 4: Simplify right side
    18,157.32x = 207,792,642.42
  5. Step 5: Solve for x
    x = 207,792,642.42/18,157.32
  6. Step 6: Final answer
    x = 11,444.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.