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Finding the Fourth Proportional to 66,545.54, 99,715.64 and 32,772.82

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Solution

The fourth proportional to 66,545.54, 99,715.64 and 32,772.82 is: 49,108.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,545.54 : 99,715.64 = 32,772.82 : x
  2. Step 2: Convert to fraction form
    66,545.54/99,715.64 = 32,772.82/x
  3. Step 3: Cross multiply
    66,545.54x = 99,715.64 × 32,772.82
  4. Step 4: Simplify right side
    66,545.54x = 3,267,962,720.90
  5. Step 5: Solve for x
    x = 3,267,962,720.90/66,545.54
  6. Step 6: Final answer
    x = 49,108.67

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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.