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Finding the Fourth Proportional to 69,934.88, 96,509.60 and 38,103.68

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Solution

The fourth proportional to 69,934.88, 96,509.60 and 38,103.68 is: 52,582.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,934.88 : 96,509.60 = 38,103.68 : x
  2. Step 2: Convert to fraction form
    69,934.88/96,509.60 = 38,103.68/x
  3. Step 3: Cross multiply
    69,934.88x = 96,509.60 × 38,103.68
  4. Step 4: Simplify right side
    69,934.88x = 3,677,370,915.33
  5. Step 5: Solve for x
    x = 3,677,370,915.33/69,934.88
  6. Step 6: Final answer
    x = 52,582.79

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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.