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Finding the Fourth Proportional to 18,322.12, 27,483.20 and 4,471.12

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Solution

The fourth proportional to 18,322.12, 27,483.20 and 4,471.12 is: 6,706.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,322.12 : 27,483.20 = 4,471.12 : x
  2. Step 2: Convert to fraction form
    18,322.12/27,483.20 = 4,471.12/x
  3. Step 3: Cross multiply
    18,322.12x = 27,483.20 × 4,471.12
  4. Step 4: Simplify right side
    18,322.12x = 122,880,685.18
  5. Step 5: Solve for x
    x = 122,880,685.18/18,322.12
  6. Step 6: Final answer
    x = 6,706.68

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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.