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Finding the Fourth Proportional to 13,950.63, 19,251.81 and 7,662.87

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Solution

The fourth proportional to 13,950.63, 19,251.81 and 7,662.87 is: 10,574.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,950.63 : 19,251.81 = 7,662.87 : x
  2. Step 2: Convert to fraction form
    13,950.63/19,251.81 = 7,662.87/x
  3. Step 3: Cross multiply
    13,950.63x = 19,251.81 × 7,662.87
  4. Step 4: Simplify right side
    13,950.63x = 147,524,117.29
  5. Step 5: Solve for x
    x = 147,524,117.29/13,950.63
  6. Step 6: Final answer
    x = 10,574.73

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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.