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Finding the Fourth Proportional to 57,703.81, 86,565.44 and 26,538.25

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Solution

The fourth proportional to 57,703.81, 86,565.44 and 26,538.25 is: 39,811.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,703.81 : 86,565.44 = 26,538.25 : x
  2. Step 2: Convert to fraction form
    57,703.81/86,565.44 = 26,538.25/x
  3. Step 3: Cross multiply
    57,703.81x = 86,565.44 × 26,538.25
  4. Step 4: Simplify right side
    57,703.81x = 2,297,295,288.08
  5. Step 5: Solve for x
    x = 2,297,295,288.08/57,703.81
  6. Step 6: Final answer
    x = 39,811.85

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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.