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Finding the Fourth Proportional to 18,322.13, 27,483.20 and 4,471.13

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Solution

The fourth proportional to 18,322.13, 27,483.20 and 4,471.13 is: 6,706.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,322.13 : 27,483.20 = 4,471.13 : x
  2. Step 2: Convert to fraction form
    18,322.13/27,483.20 = 4,471.13/x
  3. Step 3: Cross multiply
    18,322.13x = 27,483.20 × 4,471.13
  4. Step 4: Simplify right side
    18,322.13x = 122,880,800.24
  5. Step 5: Solve for x
    x = 122,880,800.24/18,322.13
  6. Step 6: Final answer
    x = 6,706.69

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Double scale
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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.