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Finding the Fourth Proportional to 39,054.64, 58,503.80 and 17,965.80

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Solution

The fourth proportional to 39,054.64, 58,503.80 and 17,965.80 is: 26,912.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,054.64 : 58,503.80 = 17,965.80 : x
  2. Step 2: Convert to fraction form
    39,054.64/58,503.80 = 17,965.80/x
  3. Step 3: Cross multiply
    39,054.64x = 58,503.80 × 17,965.80
  4. Step 4: Simplify right side
    39,054.64x = 1,051,067,570.04
  5. Step 5: Solve for x
    x = 1,051,067,570.04/39,054.64
  6. Step 6: Final answer
    x = 26,912.75

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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.