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Finding the Fourth Proportional to 62,846.75, 86,741.73 and 39,861.69

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Solution

The fourth proportional to 62,846.75, 86,741.73 and 39,861.69 is: 55,017.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,846.75 : 86,741.73 = 39,861.69 : x
  2. Step 2: Convert to fraction form
    62,846.75/86,741.73 = 39,861.69/x
  3. Step 3: Cross multiply
    62,846.75x = 86,741.73 × 39,861.69
  4. Step 4: Simplify right side
    62,846.75x = 3,457,671,951.32
  5. Step 5: Solve for x
    x = 3,457,671,951.32/62,846.75
  6. Step 6: Final answer
    x = 55,017.51

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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.