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Finding the Fourth Proportional to 12,588.95, 18,866.41 and 4,793.51

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Solution

The fourth proportional to 12,588.95, 18,866.41 and 4,793.51 is: 7,183.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,588.95 : 18,866.41 = 4,793.51 : x
  2. Step 2: Convert to fraction form
    12,588.95/18,866.41 = 4,793.51/x
  3. Step 3: Cross multiply
    12,588.95x = 18,866.41 × 4,793.51
  4. Step 4: Simplify right side
    12,588.95x = 90,436,304.18
  5. Step 5: Solve for x
    x = 90,436,304.18/12,588.95
  6. Step 6: Final answer
    x = 7,183.79

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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.