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Finding the Fourth Proportional to 8,158.59, 12,237.89 and 2,964.87

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Solution

The fourth proportional to 8,158.59, 12,237.89 and 2,964.87 is: 4,447.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,158.59 : 12,237.89 = 2,964.87 : x
  2. Step 2: Convert to fraction form
    8,158.59/12,237.89 = 2,964.87/x
  3. Step 3: Cross multiply
    8,158.59x = 12,237.89 × 2,964.87
  4. Step 4: Simplify right side
    8,158.59x = 36,283,738.10
  5. Step 5: Solve for x
    x = 36,283,738.10/8,158.59
  6. Step 6: Final answer
    x = 4,447.31

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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.