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Finding the Fourth Proportional to 18,895.44, 28,329.30 and 9,530.82

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Solution

The fourth proportional to 18,895.44, 28,329.30 and 9,530.82 is: 14,289.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,895.44 : 28,329.30 = 9,530.82 : x
  2. Step 2: Convert to fraction form
    18,895.44/28,329.30 = 9,530.82/x
  3. Step 3: Cross multiply
    18,895.44x = 28,329.30 × 9,530.82
  4. Step 4: Simplify right side
    18,895.44x = 270,001,459.03
  5. Step 5: Solve for x
    x = 270,001,459.03/18,895.44
  6. Step 6: Final answer
    x = 14,289.24

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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.