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Finding the Fourth Proportional to 49,773.78, 74,649.06 and 28,668.96

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Solution

The fourth proportional to 49,773.78, 74,649.06 and 28,668.96 is: 42,996.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,773.78 : 74,649.06 = 28,668.96 : x
  2. Step 2: Convert to fraction form
    49,773.78/74,649.06 = 28,668.96/x
  3. Step 3: Cross multiply
    49,773.78x = 74,649.06 × 28,668.96
  4. Step 4: Simplify right side
    49,773.78x = 2,140,110,915.18
  5. Step 5: Solve for x
    x = 2,140,110,915.18/49,773.78
  6. Step 6: Final answer
    x = 42,996.75

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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.