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Finding the Fourth Proportional to 43,689.87, 65,534.94 and 17,394.48

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Solution

The fourth proportional to 43,689.87, 65,534.94 and 17,394.48 is: 26,091.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,689.87 : 65,534.94 = 17,394.48 : x
  2. Step 2: Convert to fraction form
    43,689.87/65,534.94 = 17,394.48/x
  3. Step 3: Cross multiply
    43,689.87x = 65,534.94 × 17,394.48
  4. Step 4: Simplify right side
    43,689.87x = 1,139,946,203.13
  5. Step 5: Solve for x
    x = 1,139,946,203.13/43,689.87
  6. Step 6: Final answer
    x = 26,091.77

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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.