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Finding the Fourth Proportional to 4,563.72, 6,840.72 and 2,611.80

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Solution

The fourth proportional to 4,563.72, 6,840.72 and 2,611.80 is: 3,914.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,563.72 : 6,840.72 = 2,611.80 : x
  2. Step 2: Convert to fraction form
    4,563.72/6,840.72 = 2,611.80/x
  3. Step 3: Cross multiply
    4,563.72x = 6,840.72 × 2,611.80
  4. Step 4: Simplify right side
    4,563.72x = 17,866,592.50
  5. Step 5: Solve for x
    x = 17,866,592.50/4,563.72
  6. Step 6: Final answer
    x = 3,914.92

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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.