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Finding the Fourth Proportional to 7,898.88, 11,845.86 and 2,351.18

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Solution

The fourth proportional to 7,898.88, 11,845.86 and 2,351.18 is: 3,526.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,898.88 : 11,845.86 = 2,351.18 : x
  2. Step 2: Convert to fraction form
    7,898.88/11,845.86 = 2,351.18/x
  3. Step 3: Cross multiply
    7,898.88x = 11,845.86 × 2,351.18
  4. Step 4: Simplify right side
    7,898.88x = 27,851,749.11
  5. Step 5: Solve for x
    x = 27,851,749.11/7,898.88
  6. Step 6: Final answer
    x = 3,526.04

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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.