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Finding the Fourth Proportional to 28,823.60, 43,251.60 and 15,676.89

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Solution

The fourth proportional to 28,823.60, 43,251.60 and 15,676.89 is: 23,524.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,823.60 : 43,251.60 = 15,676.89 : x
  2. Step 2: Convert to fraction form
    28,823.60/43,251.60 = 15,676.89/x
  3. Step 3: Cross multiply
    28,823.60x = 43,251.60 × 15,676.89
  4. Step 4: Simplify right side
    28,823.60x = 678,050,575.52
  5. Step 5: Solve for x
    x = 678,050,575.52/28,823.60
  6. Step 6: Final answer
    x = 23,524.15

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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.