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Finding the Fourth Proportional to 67,953.24, 101,951.74 and 28,499.76

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Solution

The fourth proportional to 67,953.24, 101,951.74 and 28,499.76 is: 42,758.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,953.24 : 101,951.74 = 28,499.76 : x
  2. Step 2: Convert to fraction form
    67,953.24/101,951.74 = 28,499.76/x
  3. Step 3: Cross multiply
    67,953.24x = 101,951.74 × 28,499.76
  4. Step 4: Simplify right side
    67,953.24x = 2,905,600,121.58
  5. Step 5: Solve for x
    x = 2,905,600,121.58/67,953.24
  6. Step 6: Final answer
    x = 42,758.82

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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.