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Finding the Fourth Proportional to 4,986.87, 7,482.47 and 2,675.67

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Solution

The fourth proportional to 4,986.87, 7,482.47 and 2,675.67 is: 4,014.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,986.87 : 7,482.47 = 2,675.67 : x
  2. Step 2: Convert to fraction form
    4,986.87/7,482.47 = 2,675.67/x
  3. Step 3: Cross multiply
    4,986.87x = 7,482.47 × 2,675.67
  4. Step 4: Simplify right side
    4,986.87x = 20,020,607.13
  5. Step 5: Solve for x
    x = 20,020,607.13/4,986.87
  6. Step 6: Final answer
    x = 4,014.66

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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.