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Finding the Fourth Proportional to 51,495.86, 71,064.47 and 28,835.84

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Solution

The fourth proportional to 51,495.86, 71,064.47 and 28,835.84 is: 39,793.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,495.86 : 71,064.47 = 28,835.84 : x
  2. Step 2: Convert to fraction form
    51,495.86/71,064.47 = 28,835.84/x
  3. Step 3: Cross multiply
    51,495.86x = 71,064.47 × 28,835.84
  4. Step 4: Simplify right side
    51,495.86x = 2,049,203,686.60
  5. Step 5: Solve for x
    x = 2,049,203,686.60/51,495.86
  6. Step 6: Final answer
    x = 39,793.56

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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.