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Finding the Fourth Proportional to 28,792.33, 43,192.64 and 9,072.47

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Solution

The fourth proportional to 28,792.33, 43,192.64 and 9,072.47 is: 13,610.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,792.33 : 43,192.64 = 9,072.47 : x
  2. Step 2: Convert to fraction form
    28,792.33/43,192.64 = 9,072.47/x
  3. Step 3: Cross multiply
    28,792.33x = 43,192.64 × 9,072.47
  4. Step 4: Simplify right side
    28,792.33x = 391,864,061.28
  5. Step 5: Solve for x
    x = 391,864,061.28/28,792.33
  6. Step 6: Final answer
    x = 13,610.02

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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.