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Finding the Fourth Proportional to 69,868.79, 96,415.73 and 38,037.61

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Solution

The fourth proportional to 69,868.79, 96,415.73 and 38,037.61 is: 52,490.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,868.79 : 96,415.73 = 38,037.61 : x
  2. Step 2: Convert to fraction form
    69,868.79/96,415.73 = 38,037.61/x
  3. Step 3: Cross multiply
    69,868.79x = 96,415.73 × 38,037.61
  4. Step 4: Simplify right side
    69,868.79x = 3,667,423,453.53
  5. Step 5: Solve for x
    x = 3,667,423,453.53/69,868.79
  6. Step 6: Final answer
    x = 52,490.16

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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.