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Finding the Fourth Proportional to 60,668.75, 91,003.36 and 18,548.67

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Solution

The fourth proportional to 60,668.75, 91,003.36 and 18,548.67 is: 27,823.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,668.75 : 91,003.36 = 18,548.67 : x
  2. Step 2: Convert to fraction form
    60,668.75/91,003.36 = 18,548.67/x
  3. Step 3: Cross multiply
    60,668.75x = 91,003.36 × 18,548.67
  4. Step 4: Simplify right side
    60,668.75x = 1,687,991,293.53
  5. Step 5: Solve for x
    x = 1,687,991,293.53/60,668.75
  6. Step 6: Final answer
    x = 27,823.08

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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.