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Finding the Fourth Proportional to 54,376.54, 81,594.54 and 21,097.92

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Solution

The fourth proportional to 54,376.54, 81,594.54 and 21,097.92 is: 31,658.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,376.54 : 81,594.54 = 21,097.92 : x
  2. Step 2: Convert to fraction form
    54,376.54/81,594.54 = 21,097.92/x
  3. Step 3: Cross multiply
    54,376.54x = 81,594.54 × 21,097.92
  4. Step 4: Simplify right side
    54,376.54x = 1,721,475,001.74
  5. Step 5: Solve for x
    x = 1,721,475,001.74/54,376.54
  6. Step 6: Final answer
    x = 31,658.41

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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.