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Finding the Fourth Proportional to 13,796.48, 20,694.48 and 5,031.32

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Solution

The fourth proportional to 13,796.48, 20,694.48 and 5,031.32 is: 7,546.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,796.48 : 20,694.48 = 5,031.32 : x
  2. Step 2: Convert to fraction form
    13,796.48/20,694.48 = 5,031.32/x
  3. Step 3: Cross multiply
    13,796.48x = 20,694.48 × 5,031.32
  4. Step 4: Simplify right side
    13,796.48x = 104,120,551.11
  5. Step 5: Solve for x
    x = 104,120,551.11/13,796.48
  6. Step 6: Final answer
    x = 7,546.89

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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.