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Finding the Fourth Proportional to 61,684.50, 85,098.06 and 36,198.66

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Solution

The fourth proportional to 61,684.50, 85,098.06 and 36,198.66 is: 49,938.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,684.50 : 85,098.06 = 36,198.66 : x
  2. Step 2: Convert to fraction form
    61,684.50/85,098.06 = 36,198.66/x
  3. Step 3: Cross multiply
    61,684.50x = 85,098.06 × 36,198.66
  4. Step 4: Simplify right side
    61,684.50x = 3,080,435,740.60
  5. Step 5: Solve for x
    x = 3,080,435,740.60/61,684.50
  6. Step 6: Final answer
    x = 49,938.57

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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.