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Finding the Fourth Proportional to 7,798.90, 11,696.58 and 2,251

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Solution

The fourth proportional to 7,798.90, 11,696.58 and 2,251 is: 3,375.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,798.90 : 11,696.58 = 2,251 : x
  2. Step 2: Convert to fraction form
    7,798.90/11,696.58 = 2,251/x
  3. Step 3: Cross multiply
    7,798.90x = 11,696.58 × 2,251
  4. Step 4: Simplify right side
    7,798.90x = 26,329,001.58
  5. Step 5: Solve for x
    x = 26,329,001.58/7,798.90
  6. Step 6: Final answer
    x = 3,375.99

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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.