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Finding the Fourth Proportional to 72,286.80, 108,409.35 and 24,899.97

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Solution

The fourth proportional to 72,286.80, 108,409.35 and 24,899.97 is: 37,342.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,286.80 : 108,409.35 = 24,899.97 : x
  2. Step 2: Convert to fraction form
    72,286.80/108,409.35 = 24,899.97/x
  3. Step 3: Cross multiply
    72,286.80x = 108,409.35 × 24,899.97
  4. Step 4: Simplify right side
    72,286.80x = 2,699,389,562.72
  5. Step 5: Solve for x
    x = 2,699,389,562.72/72,286.80
  6. Step 6: Final answer
    x = 37,342.77

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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.