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Finding the Fourth Proportional to 61,850.79, 85,348.89 and 36,357.96

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Solution

The fourth proportional to 61,850.79, 85,348.89 and 36,357.96 is: 50,170.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,850.79 : 85,348.89 = 36,357.96 : x
  2. Step 2: Convert to fraction form
    61,850.79/85,348.89 = 36,357.96/x
  3. Step 3: Cross multiply
    61,850.79x = 85,348.89 × 36,357.96
  4. Step 4: Simplify right side
    61,850.79x = 3,103,111,848.72
  5. Step 5: Solve for x
    x = 3,103,111,848.72/61,850.79
  6. Step 6: Final answer
    x = 50,170.93

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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.