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Finding the Fourth Proportional to 56,612.90, 84,919.35 and 50,489.30

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Solution

The fourth proportional to 56,612.90, 84,919.35 and 50,489.30 is: 75,733.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,612.90 : 84,919.35 = 50,489.30 : x
  2. Step 2: Convert to fraction form
    56,612.90/84,919.35 = 50,489.30/x
  3. Step 3: Cross multiply
    56,612.90x = 84,919.35 × 50,489.30
  4. Step 4: Simplify right side
    56,612.90x = 4,287,518,537.96
  5. Step 5: Solve for x
    x = 4,287,518,537.96/56,612.90
  6. Step 6: Final answer
    x = 75,733.95

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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.