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Finding the Fourth Proportional to 38,375.64, 57,526.52 and 19,664.52

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Solution

The fourth proportional to 38,375.64, 57,526.52 and 19,664.52 is: 29,477.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,375.64 : 57,526.52 = 19,664.52 : x
  2. Step 2: Convert to fraction form
    38,375.64/57,526.52 = 19,664.52/x
  3. Step 3: Cross multiply
    38,375.64x = 57,526.52 × 19,664.52
  4. Step 4: Simplify right side
    38,375.64x = 1,131,231,403.07
  5. Step 5: Solve for x
    x = 1,131,231,403.07/38,375.64
  6. Step 6: Final answer
    x = 29,477.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.