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Finding the Fourth Proportional to 18,322.97, 27,484.52 and 13,356.99

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Solution

The fourth proportional to 18,322.97, 27,484.52 and 13,356.99 is: 20,035.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,322.97 : 27,484.52 = 13,356.99 : x
  2. Step 2: Convert to fraction form
    18,322.97/27,484.52 = 13,356.99/x
  3. Step 3: Cross multiply
    18,322.97x = 27,484.52 × 13,356.99
  4. Step 4: Simplify right side
    18,322.97x = 367,110,392.01
  5. Step 5: Solve for x
    x = 367,110,392.01/18,322.97
  6. Step 6: Final answer
    x = 20,035.53

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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.