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Finding the Fourth Proportional to 7,873.03, 11,812.94 and 2,942.06

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Solution

The fourth proportional to 7,873.03, 11,812.94 and 2,942.06 is: 4,414.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,873.03 : 11,812.94 = 2,942.06 : x
  2. Step 2: Convert to fraction form
    7,873.03/11,812.94 = 2,942.06/x
  3. Step 3: Cross multiply
    7,873.03x = 11,812.94 × 2,942.06
  4. Step 4: Simplify right side
    7,873.03x = 34,754,315.51
  5. Step 5: Solve for x
    x = 34,754,315.51/7,873.03
  6. Step 6: Final answer
    x = 4,414.35

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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.