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Finding the Fourth Proportional to 57,778.40, 86,667.60 and 26,674.40

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Solution

The fourth proportional to 57,778.40, 86,667.60 and 26,674.40 is: 40,011.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,778.40 : 86,667.60 = 26,674.40 : x
  2. Step 2: Convert to fraction form
    57,778.40/86,667.60 = 26,674.40/x
  3. Step 3: Cross multiply
    57,778.40x = 86,667.60 × 26,674.40
  4. Step 4: Simplify right side
    57,778.40x = 2,311,806,229.44
  5. Step 5: Solve for x
    x = 2,311,806,229.44/57,778.40
  6. Step 6: Final answer
    x = 40,011.60

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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.