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Finding the Fourth Proportional to 6,922.60, 10,359.60 and 4,735.60

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Solution

The fourth proportional to 6,922.60, 10,359.60 and 4,735.60 is: 7,086.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,922.60 : 10,359.60 = 4,735.60 : x
  2. Step 2: Convert to fraction form
    6,922.60/10,359.60 = 4,735.60/x
  3. Step 3: Cross multiply
    6,922.60x = 10,359.60 × 4,735.60
  4. Step 4: Simplify right side
    6,922.60x = 49,058,921.76
  5. Step 5: Solve for x
    x = 49,058,921.76/6,922.60
  6. Step 6: Final answer
    x = 7,086.78

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1.5x scale

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.