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Finding the Fourth Proportional to 72,654.10, 108,944.70 and 33,166.60

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Solution

The fourth proportional to 72,654.10, 108,944.70 and 33,166.60 is: 49,733.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,654.10 : 108,944.70 = 33,166.60 : x
  2. Step 2: Convert to fraction form
    72,654.10/108,944.70 = 33,166.60/x
  3. Step 3: Cross multiply
    72,654.10x = 108,944.70 × 33,166.60
  4. Step 4: Simplify right side
    72,654.10x = 3,613,325,287.02
  5. Step 5: Solve for x
    x = 3,613,325,287.02/72,654.10
  6. Step 6: Final answer
    x = 49,733.26

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1.5x scale

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.