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Finding the Fourth Proportional to 13,969.77, 20,954.12 and 4,735.77

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Solution

The fourth proportional to 13,969.77, 20,954.12 and 4,735.77 is: 7,103.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,969.77 : 20,954.12 = 4,735.77 : x
  2. Step 2: Convert to fraction form
    13,969.77/20,954.12 = 4,735.77/x
  3. Step 3: Cross multiply
    13,969.77x = 20,954.12 × 4,735.77
  4. Step 4: Simplify right side
    13,969.77x = 99,233,869.19
  5. Step 5: Solve for x
    x = 99,233,869.19/13,969.77
  6. Step 6: Final answer
    x = 7,103.47

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1.5x scale

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.