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Finding the Fourth Proportional to 69,960.60, 104,971.92 and 36,672.72

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Solution

The fourth proportional to 69,960.60, 104,971.92 and 36,672.72 is: 55,025.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,960.60 : 104,971.92 = 36,672.72 : x
  2. Step 2: Convert to fraction form
    69,960.60/104,971.92 = 36,672.72/x
  3. Step 3: Cross multiply
    69,960.60x = 104,971.92 × 36,672.72
  4. Step 4: Simplify right side
    69,960.60x = 3,849,605,830.02
  5. Step 5: Solve for x
    x = 3,849,605,830.02/69,960.60
  6. Step 6: Final answer
    x = 55,025.34

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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.