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Finding the Fourth Proportional to 73,896.64, 110,868.64 and 26,479.76

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Solution

The fourth proportional to 73,896.64, 110,868.64 and 26,479.76 is: 39,728.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,896.64 : 110,868.64 = 26,479.76 : x
  2. Step 2: Convert to fraction form
    73,896.64/110,868.64 = 26,479.76/x
  3. Step 3: Cross multiply
    73,896.64x = 110,868.64 × 26,479.76
  4. Step 4: Simplify right side
    73,896.64x = 2,935,774,978.73
  5. Step 5: Solve for x
    x = 2,935,774,978.73/73,896.64
  6. Step 6: Final answer
    x = 39,728.13

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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.