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Finding the Fourth Proportional to 15,322.16, 22,989.62 and 7,928.27

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Solution

The fourth proportional to 15,322.16, 22,989.62 and 7,928.27 is: 11,895.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,322.16 : 22,989.62 = 7,928.27 : x
  2. Step 2: Convert to fraction form
    15,322.16/22,989.62 = 7,928.27/x
  3. Step 3: Cross multiply
    15,322.16x = 22,989.62 × 7,928.27
  4. Step 4: Simplify right side
    15,322.16x = 182,267,932.39
  5. Step 5: Solve for x
    x = 182,267,932.39/15,322.16
  6. Step 6: Final answer
    x = 11,895.71

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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.