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Finding the Fourth Proportional to 5,928.64, 8,891.02 and 1,979.06

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Solution

The fourth proportional to 5,928.64, 8,891.02 and 1,979.06 is: 2,967.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,928.64 : 8,891.02 = 1,979.06 : x
  2. Step 2: Convert to fraction form
    5,928.64/8,891.02 = 1,979.06/x
  3. Step 3: Cross multiply
    5,928.64x = 8,891.02 × 1,979.06
  4. Step 4: Simplify right side
    5,928.64x = 17,595,862.04
  5. Step 5: Solve for x
    x = 17,595,862.04/5,928.64
  6. Step 6: Final answer
    x = 2,967.94

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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.