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Finding the Fourth Proportional to 61,934.48, 85,469.72 and 33,639.56

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Solution

The fourth proportional to 61,934.48, 85,469.72 and 33,639.56 is: 46,422.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,934.48 : 85,469.72 = 33,639.56 : x
  2. Step 2: Convert to fraction form
    61,934.48/85,469.72 = 33,639.56/x
  3. Step 3: Cross multiply
    61,934.48x = 85,469.72 × 33,639.56
  4. Step 4: Simplify right side
    61,934.48x = 2,875,163,774.12
  5. Step 5: Solve for x
    x = 2,875,163,774.12/61,934.48
  6. Step 6: Final answer
    x = 46,422.67

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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.