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Finding the Fourth Proportional to 5,891.52, 8,130.56 and 3,238.88

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Solution

The fourth proportional to 5,891.52, 8,130.56 and 3,238.88 is: 4,469.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,891.52 : 8,130.56 = 3,238.88 : x
  2. Step 2: Convert to fraction form
    5,891.52/8,130.56 = 3,238.88/x
  3. Step 3: Cross multiply
    5,891.52x = 8,130.56 × 3,238.88
  4. Step 4: Simplify right side
    5,891.52x = 26,333,908.17
  5. Step 5: Solve for x
    x = 26,333,908.17/5,891.52
  6. Step 6: Final answer
    x = 4,469.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.