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Finding the Fourth Proportional to 6,881.84, 9,487.23 and 4,891.67

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Solution

The fourth proportional to 6,881.84, 9,487.23 and 4,891.67 is: 6,743.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,881.84 : 9,487.23 = 4,891.67 : x
  2. Step 2: Convert to fraction form
    6,881.84/9,487.23 = 4,891.67/x
  3. Step 3: Cross multiply
    6,881.84x = 9,487.23 × 4,891.67
  4. Step 4: Simplify right side
    6,881.84x = 46,408,350.94
  5. Step 5: Solve for x
    x = 46,408,350.94/6,881.84
  6. Step 6: Final answer
    x = 6,743.60

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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.