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Finding the Fourth Proportional to 13,792.52, 20,688.60 and 5,027.60

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Solution

The fourth proportional to 13,792.52, 20,688.60 and 5,027.60 is: 7,541.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,792.52 : 20,688.60 = 5,027.60 : x
  2. Step 2: Convert to fraction form
    13,792.52/20,688.60 = 5,027.60/x
  3. Step 3: Cross multiply
    13,792.52x = 20,688.60 × 5,027.60
  4. Step 4: Simplify right side
    13,792.52x = 104,014,005.36
  5. Step 5: Solve for x
    x = 104,014,005.36/13,792.52
  6. Step 6: Final answer
    x = 7,541.33

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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.