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Finding the Fourth Proportional to 53,355, 73,629.60 and 29,481.68

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Solution

The fourth proportional to 53,355, 73,629.60 and 29,481.68 is: 40,684.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,355 : 73,629.60 = 29,481.68 : x
  2. Step 2: Convert to fraction form
    53,355/73,629.60 = 29,481.68/x
  3. Step 3: Cross multiply
    53,355x = 73,629.60 × 29,481.68
  4. Step 4: Simplify right side
    53,355x = 2,170,724,305.73
  5. Step 5: Solve for x
    x = 2,170,724,305.73/53,355
  6. Step 6: Final answer
    x = 40,684.55

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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.