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Finding the Fourth Proportional to 55,051.25, 82,580.00 and 15,605.25

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Solution

The fourth proportional to 55,051.25, 82,580.00 and 15,605.25 is: 23,408.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,051.25 : 82,580.00 = 15,605.25 : x
  2. Step 2: Convert to fraction form
    55,051.25/82,580.00 = 15,605.25/x
  3. Step 3: Cross multiply
    55,051.25x = 82,580.00 × 15,605.25
  4. Step 4: Simplify right side
    55,051.25x = 1,288,681,466.97
  5. Step 5: Solve for x
    x = 1,288,681,466.97/55,051.25
  6. Step 6: Final answer
    x = 23,408.76

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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.