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Finding the Fourth Proportional to 8,692.97, 13,039.49 and 6,107.45

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Solution

The fourth proportional to 8,692.97, 13,039.49 and 6,107.45 is: 9,161.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,692.97 : 13,039.49 = 6,107.45 : x
  2. Step 2: Convert to fraction form
    8,692.97/13,039.49 = 6,107.45/x
  3. Step 3: Cross multiply
    8,692.97x = 13,039.49 × 6,107.45
  4. Step 4: Simplify right side
    8,692.97x = 79,638,033.20
  5. Step 5: Solve for x
    x = 79,638,033.20/8,692.97
  6. Step 6: Final answer
    x = 9,161.20

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1.5x scale

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.