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Finding the Fourth Proportional to 7,168.14, 9,888.47 and 6,222.67

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Solution

The fourth proportional to 7,168.14, 9,888.47 and 6,222.67 is: 8,584.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,168.14 : 9,888.47 = 6,222.67 : x
  2. Step 2: Convert to fraction form
    7,168.14/9,888.47 = 6,222.67/x
  3. Step 3: Cross multiply
    7,168.14x = 9,888.47 × 6,222.67
  4. Step 4: Simplify right side
    7,168.14x = 61,532,685.61
  5. Step 5: Solve for x
    x = 61,532,685.61/7,168.14
  6. Step 6: Final answer
    x = 8,584.19

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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.