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Finding the Fourth Proportional to 18,152.25, 27,202.83 and 14,438.01

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Solution

The fourth proportional to 18,152.25, 27,202.83 and 14,438.01 is: 21,636.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,152.25 : 27,202.83 = 14,438.01 : x
  2. Step 2: Convert to fraction form
    18,152.25/27,202.83 = 14,438.01/x
  3. Step 3: Cross multiply
    18,152.25x = 27,202.83 × 14,438.01
  4. Step 4: Simplify right side
    18,152.25x = 392,754,731.57
  5. Step 5: Solve for x
    x = 392,754,731.57/18,152.25
  6. Step 6: Final answer
    x = 21,636.70

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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.