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Finding the Fourth Proportional to 13,957.24, 20,935.93 and 6,935.60

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Solution

The fourth proportional to 13,957.24, 20,935.93 and 6,935.60 is: 10,403.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,957.24 : 20,935.93 = 6,935.60 : x
  2. Step 2: Convert to fraction form
    13,957.24/20,935.93 = 6,935.60/x
  3. Step 3: Cross multiply
    13,957.24x = 20,935.93 × 6,935.60
  4. Step 4: Simplify right side
    13,957.24x = 145,203,236.11
  5. Step 5: Solve for x
    x = 145,203,236.11/13,957.24
  6. Step 6: Final answer
    x = 10,403.43

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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.