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Finding the Fourth Proportional to 18,549.44, 27,804.72 and 6,855.20

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Solution

The fourth proportional to 18,549.44, 27,804.72 and 6,855.20 is: 10,275.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,549.44 : 27,804.72 = 6,855.20 : x
  2. Step 2: Convert to fraction form
    18,549.44/27,804.72 = 6,855.20/x
  3. Step 3: Cross multiply
    18,549.44x = 27,804.72 × 6,855.20
  4. Step 4: Simplify right side
    18,549.44x = 190,606,916.54
  5. Step 5: Solve for x
    x = 190,606,916.54/18,549.44
  6. Step 6: Final answer
    x = 10,275.62

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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.