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Finding the Fourth Proportional to 7,796.88, 10,759.56 and 4,259.76

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Solution

The fourth proportional to 7,796.88, 10,759.56 and 4,259.76 is: 5,878.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,796.88 : 10,759.56 = 4,259.76 : x
  2. Step 2: Convert to fraction form
    7,796.88/10,759.56 = 4,259.76/x
  3. Step 3: Cross multiply
    7,796.88x = 10,759.56 × 4,259.76
  4. Step 4: Simplify right side
    7,796.88x = 45,833,143.31
  5. Step 5: Solve for x
    x = 45,833,143.31/7,796.88
  6. Step 6: Final answer
    x = 5,878.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.