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Finding the Fourth Proportional to 38,602.88, 53,183.04 and 29,640.32

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Solution

The fourth proportional to 38,602.88, 53,183.04 and 29,640.32 is: 40,835.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,602.88 : 53,183.04 = 29,640.32 : x
  2. Step 2: Convert to fraction form
    38,602.88/53,183.04 = 29,640.32/x
  3. Step 3: Cross multiply
    38,602.88x = 53,183.04 × 29,640.32
  4. Step 4: Simplify right side
    38,602.88x = 1,576,362,324.17
  5. Step 5: Solve for x
    x = 1,576,362,324.17/38,602.88
  6. Step 6: Final answer
    x = 40,835.36

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Double scale
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Similar ratio
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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.