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Finding the Fourth Proportional to 7,907.40, 11,860.20 and 2,064.60

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Solution

The fourth proportional to 7,907.40, 11,860.20 and 2,064.60 is: 3,096.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,907.40 : 11,860.20 = 2,064.60 : x
  2. Step 2: Convert to fraction form
    7,907.40/11,860.20 = 2,064.60/x
  3. Step 3: Cross multiply
    7,907.40x = 11,860.20 × 2,064.60
  4. Step 4: Simplify right side
    7,907.40x = 24,486,568.92
  5. Step 5: Solve for x
    x = 24,486,568.92/7,907.40
  6. Step 6: Final answer
    x = 3,096.67

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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.