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Finding the Fourth Proportional to 18,584.39, 25,611.03 and 18,242.80

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Solution

The fourth proportional to 18,584.39, 25,611.03 and 18,242.80 is: 25,140.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,584.39 : 25,611.03 = 18,242.80 : x
  2. Step 2: Convert to fraction form
    18,584.39/25,611.03 = 18,242.80/x
  3. Step 3: Cross multiply
    18,584.39x = 25,611.03 × 18,242.80
  4. Step 4: Simplify right side
    18,584.39x = 467,216,834.06
  5. Step 5: Solve for x
    x = 467,216,834.06/18,584.39
  6. Step 6: Final answer
    x = 25,140.28

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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.