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Finding the Fourth Proportional to 9,493.20, 14,220.74 and 8,718.12

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Solution

The fourth proportional to 9,493.20, 14,220.74 and 8,718.12 is: 13,059.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,493.20 : 14,220.74 = 8,718.12 : x
  2. Step 2: Convert to fraction form
    9,493.20/14,220.74 = 8,718.12/x
  3. Step 3: Cross multiply
    9,493.20x = 14,220.74 × 8,718.12
  4. Step 4: Simplify right side
    9,493.20x = 123,978,074.22
  5. Step 5: Solve for x
    x = 123,978,074.22/9,493.20
  6. Step 6: Final answer
    x = 13,059.67

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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.