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Finding the Fourth Proportional to 61,609.72, 85,005.25 and 36,102.39

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Solution

The fourth proportional to 61,609.72, 85,005.25 and 36,102.39 is: 49,811.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,609.72 : 85,005.25 = 36,102.39 : x
  2. Step 2: Convert to fraction form
    61,609.72/85,005.25 = 36,102.39/x
  3. Step 3: Cross multiply
    61,609.72x = 85,005.25 × 36,102.39
  4. Step 4: Simplify right side
    61,609.72x = 3,068,892,687.55
  5. Step 5: Solve for x
    x = 3,068,892,687.55/61,609.72
  6. Step 6: Final answer
    x = 49,811.83

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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.