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Finding the Fourth Proportional to 18,007.40, 27,035.40 and 11,462.60

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Solution

The fourth proportional to 18,007.40, 27,035.40 and 11,462.60 is: 17,209.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,007.40 : 27,035.40 = 11,462.60 : x
  2. Step 2: Convert to fraction form
    18,007.40/27,035.40 = 11,462.60/x
  3. Step 3: Cross multiply
    18,007.40x = 27,035.40 × 11,462.60
  4. Step 4: Simplify right side
    18,007.40x = 309,895,976.04
  5. Step 5: Solve for x
    x = 309,895,976.04/18,007.40
  6. Step 6: Final answer
    x = 17,209.37

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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.