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Finding the Fourth Proportional to 34,729.80, 52,021.80 and 28,897.80

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Solution

The fourth proportional to 34,729.80, 52,021.80 and 28,897.80 is: 43,286.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,729.80 : 52,021.80 = 28,897.80 : x
  2. Step 2: Convert to fraction form
    34,729.80/52,021.80 = 28,897.80/x
  3. Step 3: Cross multiply
    34,729.80x = 52,021.80 × 28,897.80
  4. Step 4: Simplify right side
    34,729.80x = 1,503,315,572.04
  5. Step 5: Solve for x
    x = 1,503,315,572.04/34,729.80
  6. Step 6: Final answer
    x = 43,286.04

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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.