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Finding the Fourth Proportional to 6,328.81, 8,732.28 and 3,674.62

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Solution

The fourth proportional to 6,328.81, 8,732.28 and 3,674.62 is: 5,070.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,328.81 : 8,732.28 = 3,674.62 : x
  2. Step 2: Convert to fraction form
    6,328.81/8,732.28 = 3,674.62/x
  3. Step 3: Cross multiply
    6,328.81x = 8,732.28 × 3,674.62
  4. Step 4: Simplify right side
    6,328.81x = 32,087,810.73
  5. Step 5: Solve for x
    x = 32,087,810.73/6,328.81
  6. Step 6: Final answer
    x = 5,070.12

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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.