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Finding the Fourth Proportional to 4,937.60, 7,355.40 and 4,822.40

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Solution

The fourth proportional to 4,937.60, 7,355.40 and 4,822.40 is: 7,183.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,937.60 : 7,355.40 = 4,822.40 : x
  2. Step 2: Convert to fraction form
    4,937.60/7,355.40 = 4,822.40/x
  3. Step 3: Cross multiply
    4,937.60x = 7,355.40 × 4,822.40
  4. Step 4: Simplify right side
    4,937.60x = 35,470,680.96
  5. Step 5: Solve for x
    x = 35,470,680.96/4,937.60
  6. Step 6: Final answer
    x = 7,183.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.