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Finding the Fourth Proportional to 4,622.70, 6,935.07 and 2,156.25

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Solution

The fourth proportional to 4,622.70, 6,935.07 and 2,156.25 is: 3,234.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,622.70 : 6,935.07 = 2,156.25 : x
  2. Step 2: Convert to fraction form
    4,622.70/6,935.07 = 2,156.25/x
  3. Step 3: Cross multiply
    4,622.70x = 6,935.07 × 2,156.25
  4. Step 4: Simplify right side
    4,622.70x = 14,953,744.69
  5. Step 5: Solve for x
    x = 14,953,744.69/4,622.70
  6. Step 6: Final answer
    x = 3,234.85

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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.