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Finding the Fourth Proportional to 36,479.64, 50,342.07 and 21,374.99

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Solution

The fourth proportional to 36,479.64, 50,342.07 and 21,374.99 is: 29,497.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,479.64 : 50,342.07 = 21,374.99 : x
  2. Step 2: Convert to fraction form
    36,479.64/50,342.07 = 21,374.99/x
  3. Step 3: Cross multiply
    36,479.64x = 50,342.07 × 21,374.99
  4. Step 4: Simplify right side
    36,479.64x = 1,076,061,242.83
  5. Step 5: Solve for x
    x = 1,076,061,242.83/36,479.64
  6. Step 6: Final answer
    x = 29,497.58

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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.