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Finding the Fourth Proportional to 12,380.04, 17,083.44 and 6,791.04

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Solution

The fourth proportional to 12,380.04, 17,083.44 and 6,791.04 is: 9,371.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,380.04 : 17,083.44 = 6,791.04 : x
  2. Step 2: Convert to fraction form
    12,380.04/17,083.44 = 6,791.04/x
  3. Step 3: Cross multiply
    12,380.04x = 17,083.44 × 6,791.04
  4. Step 4: Simplify right side
    12,380.04x = 116,014,324.38
  5. Step 5: Solve for x
    x = 116,014,324.38/12,380.04
  6. Step 6: Final answer
    x = 9,371.08

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Half scale
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Double scale
Find fourth proportional to 12,381.04, 17,084.82 and 6,792.04
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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.