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Finding the Fourth Proportional to 72,381.26, 108,582.20 and 22,465.67

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Solution

The fourth proportional to 72,381.26, 108,582.20 and 22,465.67 is: 33,701.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,381.26 : 108,582.20 = 22,465.67 : x
  2. Step 2: Convert to fraction form
    72,381.26/108,582.20 = 22,465.67/x
  3. Step 3: Cross multiply
    72,381.26x = 108,582.20 × 22,465.67
  4. Step 4: Simplify right side
    72,381.26x = 2,439,371,873.07
  5. Step 5: Solve for x
    x = 2,439,371,873.07/72,381.26
  6. Step 6: Final answer
    x = 33,701.71

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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.