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Finding the Fourth Proportional to 19,885.88, 29,822.45 and 8,792.33

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Solution

The fourth proportional to 19,885.88, 29,822.45 and 8,792.33 is: 13,185.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,885.88 : 29,822.45 = 8,792.33 : x
  2. Step 2: Convert to fraction form
    19,885.88/29,822.45 = 8,792.33/x
  3. Step 3: Cross multiply
    19,885.88x = 29,822.45 × 8,792.33
  4. Step 4: Simplify right side
    19,885.88x = 262,208,628.73
  5. Step 5: Solve for x
    x = 262,208,628.73/19,885.88
  6. Step 6: Final answer
    x = 13,185.67

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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.