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Finding the Fourth Proportional to 36,000.75, 49,680.90 and 20,084.25

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Solution

The fourth proportional to 36,000.75, 49,680.90 and 20,084.25 is: 27,716.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,000.75 : 49,680.90 = 20,084.25 : x
  2. Step 2: Convert to fraction form
    36,000.75/49,680.90 = 20,084.25/x
  3. Step 3: Cross multiply
    36,000.75x = 49,680.90 × 20,084.25
  4. Step 4: Simplify right side
    36,000.75x = 997,803,615.83
  5. Step 5: Solve for x
    x = 997,803,615.83/36,000.75
  6. Step 6: Final answer
    x = 27,716.19

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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.