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Finding the Fourth Proportional to 33,643.56, 50,475.06 and 13,918.44

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Solution

The fourth proportional to 33,643.56, 50,475.06 and 13,918.44 is: 20,881.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,643.56 : 50,475.06 = 13,918.44 : x
  2. Step 2: Convert to fraction form
    33,643.56/50,475.06 = 13,918.44/x
  3. Step 3: Cross multiply
    33,643.56x = 50,475.06 × 13,918.44
  4. Step 4: Simplify right side
    33,643.56x = 702,534,094.11
  5. Step 5: Solve for x
    x = 702,534,094.11/33,643.56
  6. Step 6: Final answer
    x = 20,881.68

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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.