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Finding the Fourth Proportional to 16,692.78, 25,043.12 and 5,448.06

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Solution

The fourth proportional to 16,692.78, 25,043.12 and 5,448.06 is: 8,173.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,692.78 : 25,043.12 = 5,448.06 : x
  2. Step 2: Convert to fraction form
    16,692.78/25,043.12 = 5,448.06/x
  3. Step 3: Cross multiply
    16,692.78x = 25,043.12 × 5,448.06
  4. Step 4: Simplify right side
    16,692.78x = 136,436,420.35
  5. Step 5: Solve for x
    x = 136,436,420.35/16,692.78
  6. Step 6: Final answer
    x = 8,173.38

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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.