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Finding the Fourth Proportional to 8,992.88, 13,512 and 5,707.52

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Solution

The fourth proportional to 8,992.88, 13,512 and 5,707.52 is: 8,575.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,992.88 : 13,512 = 5,707.52 : x
  2. Step 2: Convert to fraction form
    8,992.88/13,512 = 5,707.52/x
  3. Step 3: Cross multiply
    8,992.88x = 13,512 × 5,707.52
  4. Step 4: Simplify right side
    8,992.88x = 77,120,010.24
  5. Step 5: Solve for x
    x = 77,120,010.24/8,992.88
  6. Step 6: Final answer
    x = 8,575.67

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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.