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Finding the Fourth Proportional to 26,469.25, 36,530.81 and 15,291.25

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Solution

The fourth proportional to 26,469.25, 36,530.81 and 15,291.25 is: 21,103.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,469.25 : 36,530.81 = 15,291.25 : x
  2. Step 2: Convert to fraction form
    26,469.25/36,530.81 = 15,291.25/x
  3. Step 3: Cross multiply
    26,469.25x = 36,530.81 × 15,291.25
  4. Step 4: Simplify right side
    26,469.25x = 558,601,748.41
  5. Step 5: Solve for x
    x = 558,601,748.41/26,469.25
  6. Step 6: Final answer
    x = 21,103.80

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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.