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Finding the Fourth Proportional to 15,806.88, 23,720.04 and 8,792.28

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Solution

The fourth proportional to 15,806.88, 23,720.04 and 8,792.28 is: 13,193.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,806.88 : 23,720.04 = 8,792.28 : x
  2. Step 2: Convert to fraction form
    15,806.88/23,720.04 = 8,792.28/x
  3. Step 3: Cross multiply
    15,806.88x = 23,720.04 × 8,792.28
  4. Step 4: Simplify right side
    15,806.88x = 208,553,233.29
  5. Step 5: Solve for x
    x = 208,553,233.29/15,806.88
  6. Step 6: Final answer
    x = 13,193.83

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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.