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Finding the Fourth Proportional to 3,491.55, 4,819.36 and 2,076.23

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Solution

The fourth proportional to 3,491.55, 4,819.36 and 2,076.23 is: 2,865.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,491.55 : 4,819.36 = 2,076.23 : x
  2. Step 2: Convert to fraction form
    3,491.55/4,819.36 = 2,076.23/x
  3. Step 3: Cross multiply
    3,491.55x = 4,819.36 × 2,076.23
  4. Step 4: Simplify right side
    3,491.55x = 10,006,089.47
  5. Step 5: Solve for x
    x = 10,006,089.47/3,491.55
  6. Step 6: Final answer
    x = 2,865.80

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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.