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Finding the Fourth Proportional to 66,756.78, 92,124.28 and 36,541.82

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Solution

The fourth proportional to 66,756.78, 92,124.28 and 36,541.82 is: 50,427.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,756.78 : 92,124.28 = 36,541.82 : x
  2. Step 2: Convert to fraction form
    66,756.78/92,124.28 = 36,541.82/x
  3. Step 3: Cross multiply
    66,756.78x = 92,124.28 × 36,541.82
  4. Step 4: Simplify right side
    66,756.78x = 3,366,388,857.39
  5. Step 5: Solve for x
    x = 3,366,388,857.39/66,756.78
  6. Step 6: Final answer
    x = 50,427.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.