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Finding the Fourth Proportional to 8,423.45, 12,624.92 and 5,958.98

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Solution

The fourth proportional to 8,423.45, 12,624.92 and 5,958.98 is: 8,931.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,423.45 : 12,624.92 = 5,958.98 : x
  2. Step 2: Convert to fraction form
    8,423.45/12,624.92 = 5,958.98/x
  3. Step 3: Cross multiply
    8,423.45x = 12,624.92 × 5,958.98
  4. Step 4: Simplify right side
    8,423.45x = 75,231,583.10
  5. Step 5: Solve for x
    x = 75,231,583.10/8,423.45
  6. Step 6: Final answer
    x = 8,931.21

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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.