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Finding the Fourth Proportional to 51,321.65, 76,953.08 and 15,773.72

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Solution

The fourth proportional to 51,321.65, 76,953.08 and 15,773.72 is: 23,651.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,321.65 : 76,953.08 = 15,773.72 : x
  2. Step 2: Convert to fraction form
    51,321.65/76,953.08 = 15,773.72/x
  3. Step 3: Cross multiply
    51,321.65x = 76,953.08 × 15,773.72
  4. Step 4: Simplify right side
    51,321.65x = 1,213,836,337.06
  5. Step 5: Solve for x
    x = 1,213,836,337.06/51,321.65
  6. Step 6: Final answer
    x = 23,651.55

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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.