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Finding the Fourth Proportional to 18,098.21, 27,107.21 and 13,907.37

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Solution

The fourth proportional to 18,098.21, 27,107.21 and 13,907.37 is: 20,830.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,098.21 : 27,107.21 = 13,907.37 : x
  2. Step 2: Convert to fraction form
    18,098.21/27,107.21 = 13,907.37/x
  3. Step 3: Cross multiply
    18,098.21x = 27,107.21 × 13,907.37
  4. Step 4: Simplify right side
    18,098.21x = 376,989,999.14
  5. Step 5: Solve for x
    x = 376,989,999.14/18,098.21
  6. Step 6: Final answer
    x = 20,830.24

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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.