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Finding the Fourth Proportional to 4,812.55, 7,219.80 and 2,733.55

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Solution

The fourth proportional to 4,812.55, 7,219.80 and 2,733.55 is: 4,100.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,812.55 : 7,219.80 = 2,733.55 : x
  2. Step 2: Convert to fraction form
    4,812.55/7,219.80 = 2,733.55/x
  3. Step 3: Cross multiply
    4,812.55x = 7,219.80 × 2,733.55
  4. Step 4: Simplify right side
    4,812.55x = 19,735,666.24
  5. Step 5: Solve for x
    x = 19,735,666.24/4,812.55
  6. Step 6: Final answer
    x = 4,100.88

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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.