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Finding the Fourth Proportional to 25,845.78, 35,667.18 and 14,667.78

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Solution

The fourth proportional to 25,845.78, 35,667.18 and 14,667.78 is: 20,241.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,845.78 : 35,667.18 = 14,667.78 : x
  2. Step 2: Convert to fraction form
    25,845.78/35,667.18 = 14,667.78/x
  3. Step 3: Cross multiply
    25,845.78x = 35,667.18 × 14,667.78
  4. Step 4: Simplify right side
    25,845.78x = 523,158,349.46
  5. Step 5: Solve for x
    x = 523,158,349.46/25,845.78
  6. Step 6: Final answer
    x = 20,241.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.