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Finding the Fourth Proportional to 4,928.60, 6,797 and 3,807.82

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Solution

The fourth proportional to 4,928.60, 6,797 and 3,807.82 is: 5,251.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,928.60 : 6,797 = 3,807.82 : x
  2. Step 2: Convert to fraction form
    4,928.60/6,797 = 3,807.82/x
  3. Step 3: Cross multiply
    4,928.60x = 6,797 × 3,807.82
  4. Step 4: Simplify right side
    4,928.60x = 25,881,752.54
  5. Step 5: Solve for x
    x = 25,881,752.54/4,928.60
  6. Step 6: Final answer
    x = 5,251.34

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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.