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Finding the Fourth Proportional to 13,573.34, 18,731.73 and 7,604.81

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Solution

The fourth proportional to 13,573.34, 18,731.73 and 7,604.81 is: 10,494.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,573.34 : 18,731.73 = 7,604.81 : x
  2. Step 2: Convert to fraction form
    13,573.34/18,731.73 = 7,604.81/x
  3. Step 3: Cross multiply
    13,573.34x = 18,731.73 × 7,604.81
  4. Step 4: Simplify right side
    13,573.34x = 142,451,115.94
  5. Step 5: Solve for x
    x = 142,451,115.94/13,573.34
  6. Step 6: Final answer
    x = 10,494.92

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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.