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Finding the Fourth Proportional to 36,874.76, 50,904.52 and 28,820.12

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Solution

The fourth proportional to 36,874.76, 50,904.52 and 28,820.12 is: 39,785.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,874.76 : 50,904.52 = 28,820.12 : x
  2. Step 2: Convert to fraction form
    36,874.76/50,904.52 = 28,820.12/x
  3. Step 3: Cross multiply
    36,874.76x = 50,904.52 × 28,820.12
  4. Step 4: Simplify right side
    36,874.76x = 1,467,074,374.94
  5. Step 5: Solve for x
    x = 1,467,074,374.94/36,874.76
  6. Step 6: Final answer
    x = 39,785.33

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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.