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Finding the Fourth Proportional to 66,591.58, 99,891.21 and 25,038.94

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Solution

The fourth proportional to 66,591.58, 99,891.21 and 25,038.94 is: 37,559.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,591.58 : 99,891.21 = 25,038.94 : x
  2. Step 2: Convert to fraction form
    66,591.58/99,891.21 = 25,038.94/x
  3. Step 3: Cross multiply
    66,591.58x = 99,891.21 × 25,038.94
  4. Step 4: Simplify right side
    66,591.58x = 2,501,170,013.72
  5. Step 5: Solve for x
    x = 2,501,170,013.72/66,591.58
  6. Step 6: Final answer
    x = 37,559.85

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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.