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Finding the Fourth Proportional to 5,858.70, 8,789.67 and 3,389.01

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Solution

The fourth proportional to 5,858.70, 8,789.67 and 3,389.01 is: 5,084.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,858.70 : 8,789.67 = 3,389.01 : x
  2. Step 2: Convert to fraction form
    5,858.70/8,789.67 = 3,389.01/x
  3. Step 3: Cross multiply
    5,858.70x = 8,789.67 × 3,389.01
  4. Step 4: Simplify right side
    5,858.70x = 29,788,279.53
  5. Step 5: Solve for x
    x = 29,788,279.53/5,858.70
  6. Step 6: Final answer
    x = 5,084.45

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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.