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Finding the Fourth Proportional to 6,325.40, 8,725.43 and 3,672.47

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Solution

The fourth proportional to 6,325.40, 8,725.43 and 3,672.47 is: 5,065.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,325.40 : 8,725.43 = 3,672.47 : x
  2. Step 2: Convert to fraction form
    6,325.40/8,725.43 = 3,672.47/x
  3. Step 3: Cross multiply
    6,325.40x = 8,725.43 × 3,672.47
  4. Step 4: Simplify right side
    6,325.40x = 32,043,861.55
  5. Step 5: Solve for x
    x = 32,043,861.55/6,325.40
  6. Step 6: Final answer
    x = 5,065.90

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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.