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Finding the Fourth Proportional to 38,009.42, 52,453.08 and 21,242.42

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Solution

The fourth proportional to 38,009.42, 52,453.08 and 21,242.42 is: 29,314.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,009.42 : 52,453.08 = 21,242.42 : x
  2. Step 2: Convert to fraction form
    38,009.42/52,453.08 = 21,242.42/x
  3. Step 3: Cross multiply
    38,009.42x = 52,453.08 × 21,242.42
  4. Step 4: Simplify right side
    38,009.42x = 1,114,230,355.65
  5. Step 5: Solve for x
    x = 1,114,230,355.65/38,009.42
  6. Step 6: Final answer
    x = 29,314.58

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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.