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Finding the Fourth Proportional to 38,470.37, 53,083.10 and 21,473.73

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Solution

The fourth proportional to 38,470.37, 53,083.10 and 21,473.73 is: 29,630.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,470.37 : 53,083.10 = 21,473.73 : x
  2. Step 2: Convert to fraction form
    38,470.37/53,083.10 = 21,473.73/x
  3. Step 3: Cross multiply
    38,470.37x = 53,083.10 × 21,473.73
  4. Step 4: Simplify right side
    38,470.37x = 1,139,892,210.65
  5. Step 5: Solve for x
    x = 1,139,892,210.65/38,470.37
  6. Step 6: Final answer
    x = 29,630.40

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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.