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Finding the Fourth Proportional to 72,396.10, 108,590.10 and 22,475.80

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Solution

The fourth proportional to 72,396.10, 108,590.10 and 22,475.80 is: 33,712.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,396.10 : 108,590.10 = 22,475.80 : x
  2. Step 2: Convert to fraction form
    72,396.10/108,590.10 = 22,475.80/x
  3. Step 3: Cross multiply
    72,396.10x = 108,590.10 × 22,475.80
  4. Step 4: Simplify right side
    72,396.10x = 2,440,649,369.58
  5. Step 5: Solve for x
    x = 2,440,649,369.58/72,396.10
  6. Step 6: Final answer
    x = 33,712.44

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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.