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Finding the Fourth Proportional to 18,538.98, 27,809.94 and 6,694.32

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Solution

The fourth proportional to 18,538.98, 27,809.94 and 6,694.32 is: 10,042.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,538.98 : 27,809.94 = 6,694.32 : x
  2. Step 2: Convert to fraction form
    18,538.98/27,809.94 = 6,694.32/x
  3. Step 3: Cross multiply
    18,538.98x = 27,809.94 × 6,694.32
  4. Step 4: Simplify right side
    18,538.98x = 186,168,637.54
  5. Step 5: Solve for x
    x = 186,168,637.54/18,538.98
  6. Step 6: Final answer
    x = 10,042.01

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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.