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Finding the Fourth Proportional to 18,605.99, 27,892.50 and 6,911.01

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Solution

The fourth proportional to 18,605.99, 27,892.50 and 6,911.01 is: 10,360.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,605.99 : 27,892.50 = 6,911.01 : x
  2. Step 2: Convert to fraction form
    18,605.99/27,892.50 = 6,911.01/x
  3. Step 3: Cross multiply
    18,605.99x = 27,892.50 × 6,911.01
  4. Step 4: Simplify right side
    18,605.99x = 192,765,346.43
  5. Step 5: Solve for x
    x = 192,765,346.43/18,605.99
  6. Step 6: Final answer
    x = 10,360.39

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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.