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Finding the Fourth Proportional to 36,505.61, 54,765.80 and 15,445.61

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Solution

The fourth proportional to 36,505.61, 54,765.80 and 15,445.61 is: 23,171.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,505.61 : 54,765.80 = 15,445.61 : x
  2. Step 2: Convert to fraction form
    36,505.61/54,765.80 = 15,445.61/x
  3. Step 3: Cross multiply
    36,505.61x = 54,765.80 × 15,445.61
  4. Step 4: Simplify right side
    36,505.61x = 845,891,188.14
  5. Step 5: Solve for x
    x = 845,891,188.14/36,505.61
  6. Step 6: Final answer
    x = 23,171.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.