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Finding the Fourth Proportional to 1,692.69, 2,335.68 and 1,104.01

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Solution

The fourth proportional to 1,692.69, 2,335.68 and 1,104.01 is: 1,523.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,692.69 : 2,335.68 = 1,104.01 : x
  2. Step 2: Convert to fraction form
    1,692.69/2,335.68 = 1,104.01/x
  3. Step 3: Cross multiply
    1,692.69x = 2,335.68 × 1,104.01
  4. Step 4: Simplify right side
    1,692.69x = 2,578,614.08
  5. Step 5: Solve for x
    x = 2,578,614.08/1,692.69
  6. Step 6: Final answer
    x = 1,523.38

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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.