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Finding the Fourth Proportional to 13,792.50, 20,692.83 and 7,953.30

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Solution

The fourth proportional to 13,792.50, 20,692.83 and 7,953.30 is: 11,932.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,792.50 : 20,692.83 = 7,953.30 : x
  2. Step 2: Convert to fraction form
    13,792.50/20,692.83 = 7,953.30/x
  3. Step 3: Cross multiply
    13,792.50x = 20,692.83 × 7,953.30
  4. Step 4: Simplify right side
    13,792.50x = 164,576,284.84
  5. Step 5: Solve for x
    x = 164,576,284.84/13,792.50
  6. Step 6: Final answer
    x = 11,932.30

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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.