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Finding the Fourth Proportional to 13,593.24, 18,758.74 and 7,931.96

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Solution

The fourth proportional to 13,593.24, 18,758.74 and 7,931.96 is: 10,946.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,593.24 : 18,758.74 = 7,931.96 : x
  2. Step 2: Convert to fraction form
    13,593.24/18,758.74 = 7,931.96/x
  3. Step 3: Cross multiply
    13,593.24x = 18,758.74 × 7,931.96
  4. Step 4: Simplify right side
    13,593.24x = 148,793,575.33
  5. Step 5: Solve for x
    x = 148,793,575.33/13,593.24
  6. Step 6: Final answer
    x = 10,946.14

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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.