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Finding the Fourth Proportional to 18,216.63, 27,329.54 and 5,736.15

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Solution

The fourth proportional to 18,216.63, 27,329.54 and 5,736.15 is: 8,605.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,216.63 : 27,329.54 = 5,736.15 : x
  2. Step 2: Convert to fraction form
    18,216.63/27,329.54 = 5,736.15/x
  3. Step 3: Cross multiply
    18,216.63x = 27,329.54 × 5,736.15
  4. Step 4: Simplify right side
    18,216.63x = 156,766,312.19
  5. Step 5: Solve for x
    x = 156,766,312.19/18,216.63
  6. Step 6: Final answer
    x = 8,605.67

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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.