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Finding the Fourth Proportional to 3,076.76, 4,245.87 and 1,750.43

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Solution

The fourth proportional to 3,076.76, 4,245.87 and 1,750.43 is: 2,415.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,076.76 : 4,245.87 = 1,750.43 : x
  2. Step 2: Convert to fraction form
    3,076.76/4,245.87 = 1,750.43/x
  3. Step 3: Cross multiply
    3,076.76x = 4,245.87 × 1,750.43
  4. Step 4: Simplify right side
    3,076.76x = 7,432,116.33
  5. Step 5: Solve for x
    x = 7,432,116.33/3,076.76
  6. Step 6: Final answer
    x = 2,415.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.