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Finding the Fourth Proportional to 28,629.54, 39,511.02 and 16,692.06

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Solution

The fourth proportional to 28,629.54, 39,511.02 and 16,692.06 is: 23,036.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,629.54 : 39,511.02 = 16,692.06 : x
  2. Step 2: Convert to fraction form
    28,629.54/39,511.02 = 16,692.06/x
  3. Step 3: Cross multiply
    28,629.54x = 39,511.02 × 16,692.06
  4. Step 4: Simplify right side
    28,629.54x = 659,520,316.50
  5. Step 5: Solve for x
    x = 659,520,316.50/28,629.54
  6. Step 6: Final answer
    x = 23,036.36

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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.