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Finding the Fourth Proportional to 60,689.89, 90,971.66 and 33,996.75

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Solution

The fourth proportional to 60,689.89, 90,971.66 and 33,996.75 is: 50,959.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,689.89 : 90,971.66 = 33,996.75 : x
  2. Step 2: Convert to fraction form
    60,689.89/90,971.66 = 33,996.75/x
  3. Step 3: Cross multiply
    60,689.89x = 90,971.66 × 33,996.75
  4. Step 4: Simplify right side
    60,689.89x = 3,092,740,327.25
  5. Step 5: Solve for x
    x = 3,092,740,327.25/60,689.89
  6. Step 6: Final answer
    x = 50,959.73

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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.