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Finding the Fourth Proportional to 61,629.32, 85,049.58 and 36,153.96

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Solution

The fourth proportional to 61,629.32, 85,049.58 and 36,153.96 is: 49,893.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,629.32 : 85,049.58 = 36,153.96 : x
  2. Step 2: Convert to fraction form
    61,629.32/85,049.58 = 36,153.96/x
  3. Step 3: Cross multiply
    61,629.32x = 85,049.58 × 36,153.96
  4. Step 4: Simplify right side
    61,629.32x = 3,074,879,113.34
  5. Step 5: Solve for x
    x = 3,074,879,113.34/61,629.32
  6. Step 6: Final answer
    x = 49,893.12

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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.