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Finding the Fourth Proportional to 28,793.89, 39,734.89 and 16,047.01

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Solution

The fourth proportional to 28,793.89, 39,734.89 and 16,047.01 is: 22,144.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,793.89 : 39,734.89 = 16,047.01 : x
  2. Step 2: Convert to fraction form
    28,793.89/39,734.89 = 16,047.01/x
  3. Step 3: Cross multiply
    28,793.89x = 39,734.89 × 16,047.01
  4. Step 4: Simplify right side
    28,793.89x = 637,626,177.18
  5. Step 5: Solve for x
    x = 637,626,177.18/28,793.89
  6. Step 6: Final answer
    x = 22,144.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.