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Finding the Fourth Proportional to 18,602.87, 27,907.34 and 5,453.53

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Solution

The fourth proportional to 18,602.87, 27,907.34 and 5,453.53 is: 8,181.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,602.87 : 27,907.34 = 5,453.53 : x
  2. Step 2: Convert to fraction form
    18,602.87/27,907.34 = 5,453.53/x
  3. Step 3: Cross multiply
    18,602.87x = 27,907.34 × 5,453.53
  4. Step 4: Simplify right side
    18,602.87x = 152,193,418.87
  5. Step 5: Solve for x
    x = 152,193,418.87/18,602.87
  6. Step 6: Final answer
    x = 8,181.18

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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.