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Finding the Fourth Proportional to 5,756.84, 8,636.48 and 1,860.95

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Solution

The fourth proportional to 5,756.84, 8,636.48 and 1,860.95 is: 2,791.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,756.84 : 8,636.48 = 1,860.95 : x
  2. Step 2: Convert to fraction form
    5,756.84/8,636.48 = 1,860.95/x
  3. Step 3: Cross multiply
    5,756.84x = 8,636.48 × 1,860.95
  4. Step 4: Simplify right side
    5,756.84x = 16,072,004.97
  5. Step 5: Solve for x
    x = 16,072,004.97/5,756.84
  6. Step 6: Final answer
    x = 2,791.81

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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.