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Finding the Fourth Proportional to 28,673.87, 43,016.94 and 9,954.50

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Solution

The fourth proportional to 28,673.87, 43,016.94 and 9,954.50 is: 14,933.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,673.87 : 43,016.94 = 9,954.50 : x
  2. Step 2: Convert to fraction form
    28,673.87/43,016.94 = 9,954.50/x
  3. Step 3: Cross multiply
    28,673.87x = 43,016.94 × 9,954.50
  4. Step 4: Simplify right side
    28,673.87x = 428,211,914.15
  5. Step 5: Solve for x
    x = 428,211,914.15/28,673.87
  6. Step 6: Final answer
    x = 14,933.87

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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.