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Finding the Fourth Proportional to 13,305.88, 19,958.69 and 5,097.88

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Solution

The fourth proportional to 13,305.88, 19,958.69 and 5,097.88 is: 7,646.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,305.88 : 19,958.69 = 5,097.88 : x
  2. Step 2: Convert to fraction form
    13,305.88/19,958.69 = 5,097.88/x
  3. Step 3: Cross multiply
    13,305.88x = 19,958.69 × 5,097.88
  4. Step 4: Simplify right side
    13,305.88x = 101,747,006.58
  5. Step 5: Solve for x
    x = 101,747,006.58/13,305.88
  6. Step 6: Final answer
    x = 7,646.77

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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.