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Finding the Fourth Proportional to 66,049.95, 98,905.77 and 36,434.87

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Solution

The fourth proportional to 66,049.95, 98,905.77 and 36,434.87 is: 54,558.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,049.95 : 98,905.77 = 36,434.87 : x
  2. Step 2: Convert to fraction form
    66,049.95/98,905.77 = 36,434.87/x
  3. Step 3: Cross multiply
    66,049.95x = 98,905.77 × 36,434.87
  4. Step 4: Simplify right side
    66,049.95x = 3,603,618,377.67
  5. Step 5: Solve for x
    x = 3,603,618,377.67/66,049.95
  6. Step 6: Final answer
    x = 54,558.99

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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.