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Finding the Fourth Proportional to 13,584.88, 20,360.98 and 11,796.88

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Solution

The fourth proportional to 13,584.88, 20,360.98 and 11,796.88 is: 17,681.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,584.88 : 20,360.98 = 11,796.88 : x
  2. Step 2: Convert to fraction form
    13,584.88/20,360.98 = 11,796.88/x
  3. Step 3: Cross multiply
    13,584.88x = 20,360.98 × 11,796.88
  4. Step 4: Simplify right side
    13,584.88x = 240,196,037.74
  5. Step 5: Solve for x
    x = 240,196,037.74/13,584.88
  6. Step 6: Final answer
    x = 17,681.13

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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.