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Finding the Fourth Proportional to 13,504.47, 18,636.12 and 7,536.07

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Solution

The fourth proportional to 13,504.47, 18,636.12 and 7,536.07 is: 10,399.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,504.47 : 18,636.12 = 7,536.07 : x
  2. Step 2: Convert to fraction form
    13,504.47/18,636.12 = 7,536.07/x
  3. Step 3: Cross multiply
    13,504.47x = 18,636.12 × 7,536.07
  4. Step 4: Simplify right side
    13,504.47x = 140,443,104.85
  5. Step 5: Solve for x
    x = 140,443,104.85/13,504.47
  6. Step 6: Final answer
    x = 10,399.75

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.