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Finding the Fourth Proportional to 4,821.70, 7,232.55 and 4,173.70

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Solution

The fourth proportional to 4,821.70, 7,232.55 and 4,173.70 is: 6,260.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,821.70 : 7,232.55 = 4,173.70 : x
  2. Step 2: Convert to fraction form
    4,821.70/7,232.55 = 4,173.70/x
  3. Step 3: Cross multiply
    4,821.70x = 7,232.55 × 4,173.70
  4. Step 4: Simplify right side
    4,821.70x = 30,186,493.94
  5. Step 5: Solve for x
    x = 30,186,493.94/4,821.70
  6. Step 6: Final answer
    x = 6,260.55

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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.