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Finding the Fourth Proportional to 8,158.70, 12,237.62 and 4,783.37

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Solution

The fourth proportional to 8,158.70, 12,237.62 and 4,783.37 is: 7,174.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,158.70 : 12,237.62 = 4,783.37 : x
  2. Step 2: Convert to fraction form
    8,158.70/12,237.62 = 4,783.37/x
  3. Step 3: Cross multiply
    8,158.70x = 12,237.62 × 4,783.37
  4. Step 4: Simplify right side
    8,158.70x = 58,536,979.27
  5. Step 5: Solve for x
    x = 58,536,979.27/8,158.70
  6. Step 6: Final answer
    x = 7,174.80

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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.