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Finding the Fourth Proportional to 25,667.56, 38,474.56 and 12,501.84

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Solution

The fourth proportional to 25,667.56, 38,474.56 and 12,501.84 is: 18,739.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,667.56 : 38,474.56 = 12,501.84 : x
  2. Step 2: Convert to fraction form
    25,667.56/38,474.56 = 12,501.84/x
  3. Step 3: Cross multiply
    25,667.56x = 38,474.56 × 12,501.84
  4. Step 4: Simplify right side
    25,667.56x = 481,002,793.19
  5. Step 5: Solve for x
    x = 481,002,793.19/25,667.56
  6. Step 6: Final answer
    x = 18,739.72

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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.