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Finding the Fourth Proportional to 61,899.52, 92,765.20 and 28,546.24

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Solution

The fourth proportional to 61,899.52, 92,765.20 and 28,546.24 is: 42,780.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,899.52 : 92,765.20 = 28,546.24 : x
  2. Step 2: Convert to fraction form
    61,899.52/92,765.20 = 28,546.24/x
  3. Step 3: Cross multiply
    61,899.52x = 92,765.20 × 28,546.24
  4. Step 4: Simplify right side
    61,899.52x = 2,648,097,662.85
  5. Step 5: Solve for x
    x = 2,648,097,662.85/61,899.52
  6. Step 6: Final answer
    x = 42,780.58

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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.