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Finding the Fourth Proportional to 11,821.59, 17,743.58 and 8,692.07

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Solution

The fourth proportional to 11,821.59, 17,743.58 and 8,692.07 is: 13,046.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,821.59 : 17,743.58 = 8,692.07 : x
  2. Step 2: Convert to fraction form
    11,821.59/17,743.58 = 8,692.07/x
  3. Step 3: Cross multiply
    11,821.59x = 17,743.58 × 8,692.07
  4. Step 4: Simplify right side
    11,821.59x = 154,228,307.23
  5. Step 5: Solve for x
    x = 154,228,307.23/11,821.59
  6. Step 6: Final answer
    x = 13,046.33

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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.