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Finding the Fourth Proportional to 4,658.70, 6,991.29 and 1,739.58

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Solution

The fourth proportional to 4,658.70, 6,991.29 and 1,739.58 is: 2,610.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,658.70 : 6,991.29 = 1,739.58 : x
  2. Step 2: Convert to fraction form
    4,658.70/6,991.29 = 1,739.58/x
  3. Step 3: Cross multiply
    4,658.70x = 6,991.29 × 1,739.58
  4. Step 4: Simplify right side
    4,658.70x = 12,161,908.26
  5. Step 5: Solve for x
    x = 12,161,908.26/4,658.70
  6. Step 6: Final answer
    x = 2,610.58

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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.