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Finding the Fourth Proportional to 4,480.76, 6,724.56 and 2,017.28

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Solution

The fourth proportional to 4,480.76, 6,724.56 and 2,017.28 is: 3,027.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,480.76 : 6,724.56 = 2,017.28 : x
  2. Step 2: Convert to fraction form
    4,480.76/6,724.56 = 2,017.28/x
  3. Step 3: Cross multiply
    4,480.76x = 6,724.56 × 2,017.28
  4. Step 4: Simplify right side
    4,480.76x = 13,565,320.40
  5. Step 5: Solve for x
    x = 13,565,320.40/4,480.76
  6. Step 6: Final answer
    x = 3,027.46

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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.