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Finding the Fourth Proportional to 6,325.50, 8,729.10 and 3,674.40

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Solution

The fourth proportional to 6,325.50, 8,729.10 and 3,674.40 is: 5,070.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,325.50 : 8,729.10 = 3,674.40 : x
  2. Step 2: Convert to fraction form
    6,325.50/8,729.10 = 3,674.40/x
  3. Step 3: Cross multiply
    6,325.50x = 8,729.10 × 3,674.40
  4. Step 4: Simplify right side
    6,325.50x = 32,074,205.04
  5. Step 5: Solve for x
    x = 32,074,205.04/6,325.50
  6. Step 6: Final answer
    x = 5,070.62

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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.