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Finding the Fourth Proportional to 13,573.67, 18,732.20 and 7,605.38

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Solution

The fourth proportional to 13,573.67, 18,732.20 and 7,605.38 is: 10,495.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,573.67 : 18,732.20 = 7,605.38 : x
  2. Step 2: Convert to fraction form
    13,573.67/18,732.20 = 7,605.38/x
  3. Step 3: Cross multiply
    13,573.67x = 18,732.20 × 7,605.38
  4. Step 4: Simplify right side
    13,573.67x = 142,465,508.04
  5. Step 5: Solve for x
    x = 142,465,508.04/13,573.67
  6. Step 6: Final answer
    x = 10,495.73

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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.