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Finding the Fourth Proportional to 7,156.88, 10,736.94 and 2,539.88

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Solution

The fourth proportional to 7,156.88, 10,736.94 and 2,539.88 is: 3,810.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,156.88 : 10,736.94 = 2,539.88 : x
  2. Step 2: Convert to fraction form
    7,156.88/10,736.94 = 2,539.88/x
  3. Step 3: Cross multiply
    7,156.88x = 10,736.94 × 2,539.88
  4. Step 4: Simplify right side
    7,156.88x = 27,270,539.17
  5. Step 5: Solve for x
    x = 27,270,539.17/7,156.88
  6. Step 6: Final answer
    x = 3,810.39

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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.