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Finding the Fourth Proportional to 18,950.00, 28,424.79 and 7,263.21

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Solution

The fourth proportional to 18,950.00, 28,424.79 and 7,263.21 is: 10,894.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,950.00 : 28,424.79 = 7,263.21 : x
  2. Step 2: Convert to fraction form
    18,950.00/28,424.79 = 7,263.21/x
  3. Step 3: Cross multiply
    18,950.00x = 28,424.79 × 7,263.21
  4. Step 4: Simplify right side
    18,950.00x = 206,455,218.98
  5. Step 5: Solve for x
    x = 206,455,218.98/18,950.00
  6. Step 6: Final answer
    x = 10,894.74

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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.