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Finding the Fourth Proportional to 55,672.75, 83,299.87 and 39,065.19

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Solution

The fourth proportional to 55,672.75, 83,299.87 and 39,065.19 is: 58,450.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,672.75 : 83,299.87 = 39,065.19 : x
  2. Step 2: Convert to fraction form
    55,672.75/83,299.87 = 39,065.19/x
  3. Step 3: Cross multiply
    55,672.75x = 83,299.87 × 39,065.19
  4. Step 4: Simplify right side
    55,672.75x = 3,254,125,248.53
  5. Step 5: Solve for x
    x = 3,254,125,248.53/55,672.75
  6. Step 6: Final answer
    x = 58,450.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.