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Finding the Fourth Proportional to 1,692.74, 2,336.00 and 984.63

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Solution

The fourth proportional to 1,692.74, 2,336.00 and 984.63 is: 1,358.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,692.74 : 2,336.00 = 984.63 : x
  2. Step 2: Convert to fraction form
    1,692.74/2,336.00 = 984.63/x
  3. Step 3: Cross multiply
    1,692.74x = 2,336.00 × 984.63
  4. Step 4: Simplify right side
    1,692.74x = 2,300,090.76
  5. Step 5: Solve for x
    x = 2,300,090.76/1,692.74
  6. Step 6: Final answer
    x = 1,358.80

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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.