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Finding the Fourth Proportional to 7,897.88, 11,848.88 and 2,633.69

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Solution

The fourth proportional to 7,897.88, 11,848.88 and 2,633.69 is: 3,951.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,897.88 : 11,848.88 = 2,633.69 : x
  2. Step 2: Convert to fraction form
    7,897.88/11,848.88 = 2,633.69/x
  3. Step 3: Cross multiply
    7,897.88x = 11,848.88 × 2,633.69
  4. Step 4: Simplify right side
    7,897.88x = 31,206,312.97
  5. Step 5: Solve for x
    x = 31,206,312.97/7,897.88
  6. Step 6: Final answer
    x = 3,951.23

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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.