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Finding the Fourth Proportional to 13,469.40, 18,592.76 and 11,573.40

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Solution

The fourth proportional to 13,469.40, 18,592.76 and 11,573.40 is: 15,975.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,469.40 : 18,592.76 = 11,573.40 : x
  2. Step 2: Convert to fraction form
    13,469.40/18,592.76 = 11,573.40/x
  3. Step 3: Cross multiply
    13,469.40x = 18,592.76 × 11,573.40
  4. Step 4: Simplify right side
    13,469.40x = 215,181,448.58
  5. Step 5: Solve for x
    x = 215,181,448.58/13,469.40
  6. Step 6: Final answer
    x = 15,975.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.