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Finding the Fourth Proportional to 29,503.41, 40,729.77 and 19,993.55

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Solution

The fourth proportional to 29,503.41, 40,729.77 and 19,993.55 is: 27,601.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,503.41 : 40,729.77 = 19,993.55 : x
  2. Step 2: Convert to fraction form
    29,503.41/40,729.77 = 19,993.55/x
  3. Step 3: Cross multiply
    29,503.41x = 40,729.77 × 19,993.55
  4. Step 4: Simplify right side
    29,503.41x = 814,332,489.33
  5. Step 5: Solve for x
    x = 814,332,489.33/29,503.41
  6. Step 6: Final answer
    x = 27,601.30

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Half scale
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Double scale
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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.