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Finding the Fourth Proportional to 14,993.57, 20,692.95 and 8,705.94

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Solution

The fourth proportional to 14,993.57, 20,692.95 and 8,705.94 is: 12,015.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,993.57 : 20,692.95 = 8,705.94 : x
  2. Step 2: Convert to fraction form
    14,993.57/20,692.95 = 8,705.94/x
  3. Step 3: Cross multiply
    14,993.57x = 20,692.95 × 8,705.94
  4. Step 4: Simplify right side
    14,993.57x = 180,151,537.59
  5. Step 5: Solve for x
    x = 180,151,537.59/14,993.57
  6. Step 6: Final answer
    x = 12,015.26

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1.5x scale

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.