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Finding the Fourth Proportional to 18,028.58, 24,879.49 and 9,962.06

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Solution

The fourth proportional to 18,028.58, 24,879.49 and 9,962.06 is: 13,747.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,028.58 : 24,879.49 = 9,962.06 : x
  2. Step 2: Convert to fraction form
    18,028.58/24,879.49 = 9,962.06/x
  3. Step 3: Cross multiply
    18,028.58x = 24,879.49 × 9,962.06
  4. Step 4: Simplify right side
    18,028.58x = 247,850,822.85
  5. Step 5: Solve for x
    x = 247,850,822.85/18,028.58
  6. Step 6: Final answer
    x = 13,747.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.