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Finding the Fourth Proportional to 12,361.65, 17,059.31 and 6,772.65

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Solution

The fourth proportional to 12,361.65, 17,059.31 and 6,772.65 is: 9,346.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,361.65 : 17,059.31 = 6,772.65 : x
  2. Step 2: Convert to fraction form
    12,361.65/17,059.31 = 6,772.65/x
  3. Step 3: Cross multiply
    12,361.65x = 17,059.31 × 6,772.65
  4. Step 4: Simplify right side
    12,361.65x = 115,536,735.87
  5. Step 5: Solve for x
    x = 115,536,735.87/12,361.65
  6. Step 6: Final answer
    x = 9,346.38

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Half scale
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Double scale
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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.