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Finding the Fourth Proportional to 13,955.80, 20,936.78 and 4,595.44

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Solution

The fourth proportional to 13,955.80, 20,936.78 and 4,595.44 is: 6,894.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,955.80 : 20,936.78 = 4,595.44 : x
  2. Step 2: Convert to fraction form
    13,955.80/20,936.78 = 4,595.44/x
  3. Step 3: Cross multiply
    13,955.80x = 20,936.78 × 4,595.44
  4. Step 4: Simplify right side
    13,955.80x = 96,213,716.28
  5. Step 5: Solve for x
    x = 96,213,716.28/13,955.80
  6. Step 6: Final answer
    x = 6,894.17

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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.