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Finding the Fourth Proportional to 69,960.64, 104,971.87 and 36,672.74

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Solution

The fourth proportional to 69,960.64, 104,971.87 and 36,672.74 is: 55,025.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,960.64 : 104,971.87 = 36,672.74 : x
  2. Step 2: Convert to fraction form
    69,960.64/104,971.87 = 36,672.74/x
  3. Step 3: Cross multiply
    69,960.64x = 104,971.87 × 36,672.74
  4. Step 4: Simplify right side
    69,960.64x = 3,849,606,095.82
  5. Step 5: Solve for x
    x = 3,849,606,095.82/69,960.64
  6. Step 6: Final answer
    x = 55,025.31

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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.