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Finding the Fourth Proportional to 72,602.79, 108,879.60 and 27,613.45

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Solution

The fourth proportional to 72,602.79, 108,879.60 and 27,613.45 is: 41,410.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,602.79 : 108,879.60 = 27,613.45 : x
  2. Step 2: Convert to fraction form
    72,602.79/108,879.60 = 27,613.45/x
  3. Step 3: Cross multiply
    72,602.79x = 108,879.60 × 27,613.45
  4. Step 4: Simplify right side
    72,602.79x = 3,006,541,390.62
  5. Step 5: Solve for x
    x = 3,006,541,390.62/72,602.79
  6. Step 6: Final answer
    x = 41,410.82

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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.