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Finding the Fourth Proportional to 54,058.61, 81,087.73 and 14,615.72

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Solution

The fourth proportional to 54,058.61, 81,087.73 and 14,615.72 is: 21,923.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,058.61 : 81,087.73 = 14,615.72 : x
  2. Step 2: Convert to fraction form
    54,058.61/81,087.73 = 14,615.72/x
  3. Step 3: Cross multiply
    54,058.61x = 81,087.73 × 14,615.72
  4. Step 4: Simplify right side
    54,058.61x = 1,185,155,419.22
  5. Step 5: Solve for x
    x = 1,185,155,419.22/54,058.61
  6. Step 6: Final answer
    x = 21,923.53

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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.