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Finding the Fourth Proportional to 54,700.75, 82,064.99 and 15,257.87

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Solution

The fourth proportional to 54,700.75, 82,064.99 and 15,257.87 is: 22,890.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,700.75 : 82,064.99 = 15,257.87 : x
  2. Step 2: Convert to fraction form
    54,700.75/82,064.99 = 15,257.87/x
  3. Step 3: Cross multiply
    54,700.75x = 82,064.99 × 15,257.87
  4. Step 4: Simplify right side
    54,700.75x = 1,252,136,948.97
  5. Step 5: Solve for x
    x = 1,252,136,948.97/54,700.75
  6. Step 6: Final answer
    x = 22,890.67

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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.