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Finding the Fourth Proportional to 5,919.28, 8,166.28 and 5,173.27

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Solution

The fourth proportional to 5,919.28, 8,166.28 and 5,173.27 is: 7,137.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,919.28 : 8,166.28 = 5,173.27 : x
  2. Step 2: Convert to fraction form
    5,919.28/8,166.28 = 5,173.27/x
  3. Step 3: Cross multiply
    5,919.28x = 8,166.28 × 5,173.27
  4. Step 4: Simplify right side
    5,919.28x = 42,246,371.34
  5. Step 5: Solve for x
    x = 42,246,371.34/5,919.28
  6. Step 6: Final answer
    x = 7,137.08

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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.