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Finding the Fourth Proportional to 5,928.40, 8,892.60 and 3,876.40

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Solution

The fourth proportional to 5,928.40, 8,892.60 and 3,876.40 is: 5,814.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,928.40 : 8,892.60 = 3,876.40 : x
  2. Step 2: Convert to fraction form
    5,928.40/8,892.60 = 3,876.40/x
  3. Step 3: Cross multiply
    5,928.40x = 8,892.60 × 3,876.40
  4. Step 4: Simplify right side
    5,928.40x = 34,471,274.64
  5. Step 5: Solve for x
    x = 34,471,274.64/5,928.40
  6. Step 6: Final answer
    x = 5,814.60

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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.