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Finding the Fourth Proportional to 66,593.78, 91,902.22 and 38,299.50

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Solution

The fourth proportional to 66,593.78, 91,902.22 and 38,299.50 is: 52,854.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,593.78 : 91,902.22 = 38,299.50 : x
  2. Step 2: Convert to fraction form
    66,593.78/91,902.22 = 38,299.50/x
  3. Step 3: Cross multiply
    66,593.78x = 91,902.22 × 38,299.50
  4. Step 4: Simplify right side
    66,593.78x = 3,519,809,074.89
  5. Step 5: Solve for x
    x = 3,519,809,074.89/66,593.78
  6. Step 6: Final answer
    x = 52,854.92

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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.