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Finding the Fourth Proportional to 5,361.48, 8,043.30 and 1,851.62

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Solution

The fourth proportional to 5,361.48, 8,043.30 and 1,851.62 is: 2,777.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,361.48 : 8,043.30 = 1,851.62 : x
  2. Step 2: Convert to fraction form
    5,361.48/8,043.30 = 1,851.62/x
  3. Step 3: Cross multiply
    5,361.48x = 8,043.30 × 1,851.62
  4. Step 4: Simplify right side
    5,361.48x = 14,893,123.36
  5. Step 5: Solve for x
    x = 14,893,123.36/5,361.48
  6. Step 6: Final answer
    x = 2,777.80

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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.