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Finding the Fourth Proportional to 39,707.50, 54,792.31 and 23,791.54

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Solution

The fourth proportional to 39,707.50, 54,792.31 and 23,791.54 is: 32,829.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,707.50 : 54,792.31 = 23,791.54 : x
  2. Step 2: Convert to fraction form
    39,707.50/54,792.31 = 23,791.54/x
  3. Step 3: Cross multiply
    39,707.50x = 54,792.31 × 23,791.54
  4. Step 4: Simplify right side
    39,707.50x = 1,303,593,101.62
  5. Step 5: Solve for x
    x = 1,303,593,101.62/39,707.50
  6. Step 6: Final answer
    x = 32,829.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.