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Finding the Fourth Proportional to 8,692.68, 13,040.91 and 2,849.07

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Solution

The fourth proportional to 8,692.68, 13,040.91 and 2,849.07 is: 4,274.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,692.68 : 13,040.91 = 2,849.07 : x
  2. Step 2: Convert to fraction form
    8,692.68/13,040.91 = 2,849.07/x
  3. Step 3: Cross multiply
    8,692.68x = 13,040.91 × 2,849.07
  4. Step 4: Simplify right side
    8,692.68x = 37,154,465.45
  5. Step 5: Solve for x
    x = 37,154,465.45/8,692.68
  6. Step 6: Final answer
    x = 4,274.22

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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.