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Finding the Fourth Proportional to 72,926.48, 109,390.22 and 20,336.44

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Solution

The fourth proportional to 72,926.48, 109,390.22 and 20,336.44 is: 30,504.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,926.48 : 109,390.22 = 20,336.44 : x
  2. Step 2: Convert to fraction form
    72,926.48/109,390.22 = 20,336.44/x
  3. Step 3: Cross multiply
    72,926.48x = 109,390.22 × 20,336.44
  4. Step 4: Simplify right side
    72,926.48x = 2,224,607,645.62
  5. Step 5: Solve for x
    x = 2,224,607,645.62/72,926.48
  6. Step 6: Final answer
    x = 30,504.80

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1.5x scale

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.