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Finding the Fourth Proportional to 13,955.17, 20,933.42 and 4,093.63

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Solution

The fourth proportional to 13,955.17, 20,933.42 and 4,093.63 is: 6,140.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,955.17 : 20,933.42 = 4,093.63 : x
  2. Step 2: Convert to fraction form
    13,955.17/20,933.42 = 4,093.63/x
  3. Step 3: Cross multiply
    13,955.17x = 20,933.42 × 4,093.63
  4. Step 4: Simplify right side
    13,955.17x = 85,693,676.11
  5. Step 5: Solve for x
    x = 85,693,676.11/13,955.17
  6. Step 6: Final answer
    x = 6,140.64

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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.