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Finding the Fourth Proportional to 15,992.56, 23,910 and 13,554.64

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Solution

The fourth proportional to 15,992.56, 23,910 and 13,554.64 is: 20,265.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,992.56 : 23,910 = 13,554.64 : x
  2. Step 2: Convert to fraction form
    15,992.56/23,910 = 13,554.64/x
  3. Step 3: Cross multiply
    15,992.56x = 23,910 × 13,554.64
  4. Step 4: Simplify right side
    15,992.56x = 324,091,442.40
  5. Step 5: Solve for x
    x = 324,091,442.40/15,992.56
  6. Step 6: Final answer
    x = 20,265.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.