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Finding the Fourth Proportional to 4,873.70, 7,310.55 and 1,755.20

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Solution

The fourth proportional to 4,873.70, 7,310.55 and 1,755.20 is: 2,632.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,873.70 : 7,310.55 = 1,755.20 : x
  2. Step 2: Convert to fraction form
    4,873.70/7,310.55 = 1,755.20/x
  3. Step 3: Cross multiply
    4,873.70x = 7,310.55 × 1,755.20
  4. Step 4: Simplify right side
    4,873.70x = 12,831,477.36
  5. Step 5: Solve for x
    x = 12,831,477.36/4,873.70
  6. Step 6: Final answer
    x = 2,632.80

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Similar ratio
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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.