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Finding the Fourth Proportional to 18,435.54, 27,650.25 and 7,907.25

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Solution

The fourth proportional to 18,435.54, 27,650.25 and 7,907.25 is: 11,859.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,435.54 : 27,650.25 = 7,907.25 : x
  2. Step 2: Convert to fraction form
    18,435.54/27,650.25 = 7,907.25/x
  3. Step 3: Cross multiply
    18,435.54x = 27,650.25 × 7,907.25
  4. Step 4: Simplify right side
    18,435.54x = 218,637,439.31
  5. Step 5: Solve for x
    x = 218,637,439.31/18,435.54
  6. Step 6: Final answer
    x = 11,859.56

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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.