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Finding the Fourth Proportional to 2,416.98, 3,624.97 and 857.03

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Solution

The fourth proportional to 2,416.98, 3,624.97 and 857.03 is: 1,285.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,416.98 : 3,624.97 = 857.03 : x
  2. Step 2: Convert to fraction form
    2,416.98/3,624.97 = 857.03/x
  3. Step 3: Cross multiply
    2,416.98x = 3,624.97 × 857.03
  4. Step 4: Simplify right side
    2,416.98x = 3,106,706.15
  5. Step 5: Solve for x
    x = 3,106,706.15/2,416.98
  6. Step 6: Final answer
    x = 1,285.37

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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.