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Finding the Fourth Proportional to 25,667.80, 38,501.70 and 17,794.60

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Solution

The fourth proportional to 25,667.80, 38,501.70 and 17,794.60 is: 26,691.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,667.80 : 38,501.70 = 17,794.60 : x
  2. Step 2: Convert to fraction form
    25,667.80/38,501.70 = 17,794.60/x
  3. Step 3: Cross multiply
    25,667.80x = 38,501.70 × 17,794.60
  4. Step 4: Simplify right side
    25,667.80x = 685,122,350.82
  5. Step 5: Solve for x
    x = 685,122,350.82/25,667.80
  6. Step 6: Final answer
    x = 26,691.90

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.