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Finding the Fourth Proportional to 4,999.80, 7,493.70 and 2,076.60

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Solution

The fourth proportional to 4,999.80, 7,493.70 and 2,076.60 is: 3,112.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,999.80 : 7,493.70 = 2,076.60 : x
  2. Step 2: Convert to fraction form
    4,999.80/7,493.70 = 2,076.60/x
  3. Step 3: Cross multiply
    4,999.80x = 7,493.70 × 2,076.60
  4. Step 4: Simplify right side
    4,999.80x = 15,561,417.42
  5. Step 5: Solve for x
    x = 15,561,417.42/4,999.80
  6. Step 6: Final answer
    x = 3,112.41

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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.