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Finding the Fourth Proportional to 5,912.40, 8,868.60 and 2,996.40

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Solution

The fourth proportional to 5,912.40, 8,868.60 and 2,996.40 is: 4,494.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,912.40 : 8,868.60 = 2,996.40 : x
  2. Step 2: Convert to fraction form
    5,912.40/8,868.60 = 2,996.40/x
  3. Step 3: Cross multiply
    5,912.40x = 8,868.60 × 2,996.40
  4. Step 4: Simplify right side
    5,912.40x = 26,573,873.04
  5. Step 5: Solve for x
    x = 26,573,873.04/5,912.40
  6. Step 6: Final answer
    x = 4,494.60

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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.