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Finding the Fourth Proportional to 36,878.20, 50,894.94 and 20,967.64

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Solution

The fourth proportional to 36,878.20, 50,894.94 and 20,967.64 is: 28,937.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,878.20 : 50,894.94 = 20,967.64 : x
  2. Step 2: Convert to fraction form
    36,878.20/50,894.94 = 20,967.64/x
  3. Step 3: Cross multiply
    36,878.20x = 50,894.94 × 20,967.64
  4. Step 4: Simplify right side
    36,878.20x = 1,067,146,779.74
  5. Step 5: Solve for x
    x = 1,067,146,779.74/36,878.20
  6. Step 6: Final answer
    x = 28,937.06

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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.