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Finding the Fourth Proportional to 11,336, 17,004.98 and 3,128

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Solution

The fourth proportional to 11,336, 17,004.98 and 3,128 is: 4,692.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,336 : 17,004.98 = 3,128 : x
  2. Step 2: Convert to fraction form
    11,336/17,004.98 = 3,128/x
  3. Step 3: Cross multiply
    11,336x = 17,004.98 × 3,128
  4. Step 4: Simplify right side
    11,336x = 53,191,577.44
  5. Step 5: Solve for x
    x = 53,191,577.44/11,336
  6. Step 6: Final answer
    x = 4,692.27

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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.