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Finding the Fourth Proportional to 7,903.94, 11,860.78 and 4,396.64

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Solution

The fourth proportional to 7,903.94, 11,860.78 and 4,396.64 is: 6,597.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,903.94 : 11,860.78 = 4,396.64 : x
  2. Step 2: Convert to fraction form
    7,903.94/11,860.78 = 4,396.64/x
  3. Step 3: Cross multiply
    7,903.94x = 11,860.78 × 4,396.64
  4. Step 4: Simplify right side
    7,903.94x = 52,147,579.78
  5. Step 5: Solve for x
    x = 52,147,579.78/7,903.94
  6. Step 6: Final answer
    x = 6,597.67

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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.