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Finding the Fourth Proportional to 38,067.65, 52,531.70 and 21,070.88

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Solution

The fourth proportional to 38,067.65, 52,531.70 and 21,070.88 is: 29,076.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,067.65 : 52,531.70 = 21,070.88 : x
  2. Step 2: Convert to fraction form
    38,067.65/52,531.70 = 21,070.88/x
  3. Step 3: Cross multiply
    38,067.65x = 52,531.70 × 21,070.88
  4. Step 4: Simplify right side
    38,067.65x = 1,106,888,778.88
  5. Step 5: Solve for x
    x = 1,106,888,778.88/38,067.65
  6. Step 6: Final answer
    x = 29,076.89

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.