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Finding the Fourth Proportional to 36,412.88, 54,627.64 and 15,642.32

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Solution

The fourth proportional to 36,412.88, 54,627.64 and 15,642.32 is: 23,467.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,412.88 : 54,627.64 = 15,642.32 : x
  2. Step 2: Convert to fraction form
    36,412.88/54,627.64 = 15,642.32/x
  3. Step 3: Cross multiply
    36,412.88x = 54,627.64 × 15,642.32
  4. Step 4: Simplify right side
    36,412.88x = 854,503,025.72
  5. Step 5: Solve for x
    x = 854,503,025.72/36,412.88
  6. Step 6: Final answer
    x = 23,467.05

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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.