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Finding the Fourth Proportional to 50,781.90, 70,005.99 and 35,627.61

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Solution

The fourth proportional to 50,781.90, 70,005.99 and 35,627.61 is: 49,114.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,781.90 : 70,005.99 = 35,627.61 : x
  2. Step 2: Convert to fraction form
    50,781.90/70,005.99 = 35,627.61/x
  3. Step 3: Cross multiply
    50,781.90x = 70,005.99 × 35,627.61
  4. Step 4: Simplify right side
    50,781.90x = 2,494,146,109.38
  5. Step 5: Solve for x
    x = 2,494,146,109.38/50,781.90
  6. Step 6: Final answer
    x = 49,114.86

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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.