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Finding the Fourth Proportional to 18,932.27, 28,373.09 and 14,528.16

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Solution

The fourth proportional to 18,932.27, 28,373.09 and 14,528.16 is: 21,772.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,932.27 : 28,373.09 = 14,528.16 : x
  2. Step 2: Convert to fraction form
    18,932.27/28,373.09 = 14,528.16/x
  3. Step 3: Cross multiply
    18,932.27x = 28,373.09 × 14,528.16
  4. Step 4: Simplify right side
    18,932.27x = 412,208,718.57
  5. Step 5: Solve for x
    x = 412,208,718.57/18,932.27
  6. Step 6: Final answer
    x = 21,772.82

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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.