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Finding the Fourth Proportional to 9,273.90, 13,898.70 and 3,722.70

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Solution

The fourth proportional to 9,273.90, 13,898.70 and 3,722.70 is: 5,579.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,273.90 : 13,898.70 = 3,722.70 : x
  2. Step 2: Convert to fraction form
    9,273.90/13,898.70 = 3,722.70/x
  3. Step 3: Cross multiply
    9,273.90x = 13,898.70 × 3,722.70
  4. Step 4: Simplify right side
    9,273.90x = 51,740,690.49
  5. Step 5: Solve for x
    x = 51,740,690.49/9,273.90
  6. Step 6: Final answer
    x = 5,579.17

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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.