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Finding the Fourth Proportional to 6,679.70, 9,213.96 and 4,411.06

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Solution

The fourth proportional to 6,679.70, 9,213.96 and 4,411.06 is: 6,084.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,679.70 : 9,213.96 = 4,411.06 : x
  2. Step 2: Convert to fraction form
    6,679.70/9,213.96 = 4,411.06/x
  3. Step 3: Cross multiply
    6,679.70x = 9,213.96 × 4,411.06
  4. Step 4: Simplify right side
    6,679.70x = 40,643,311.50
  5. Step 5: Solve for x
    x = 40,643,311.50/6,679.70
  6. Step 6: Final answer
    x = 6,084.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.