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Finding the Fourth Proportional to 72,967.67, 109,451.54 and 17,563.67

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Solution

The fourth proportional to 72,967.67, 109,451.54 and 17,563.67 is: 26,345.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,967.67 : 109,451.54 = 17,563.67 : x
  2. Step 2: Convert to fraction form
    72,967.67/109,451.54 = 17,563.67/x
  3. Step 3: Cross multiply
    72,967.67x = 109,451.54 × 17,563.67
  4. Step 4: Simplify right side
    72,967.67x = 1,922,370,729.55
  5. Step 5: Solve for x
    x = 1,922,370,729.55/72,967.67
  6. Step 6: Final answer
    x = 26,345.51

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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.