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Finding the Fourth Proportional to 14,692.57, 20,278.49 and 8,404.93

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Solution

The fourth proportional to 14,692.57, 20,278.49 and 8,404.93 is: 11,600.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,692.57 : 20,278.49 = 8,404.93 : x
  2. Step 2: Convert to fraction form
    14,692.57/20,278.49 = 8,404.93/x
  3. Step 3: Cross multiply
    14,692.57x = 20,278.49 × 8,404.93
  4. Step 4: Simplify right side
    14,692.57x = 170,439,288.96
  5. Step 5: Solve for x
    x = 170,439,288.96/14,692.57
  6. Step 6: Final answer
    x = 11,600.37

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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.