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Finding the Fourth Proportional to 68,855.94, 95,021.71 and 38,641.93

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Solution

The fourth proportional to 68,855.94, 95,021.71 and 38,641.93 is: 53,326.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,855.94 : 95,021.71 = 38,641.93 : x
  2. Step 2: Convert to fraction form
    68,855.94/95,021.71 = 38,641.93/x
  3. Step 3: Cross multiply
    68,855.94x = 95,021.71 × 38,641.93
  4. Step 4: Simplify right side
    68,855.94x = 3,671,821,932.14
  5. Step 5: Solve for x
    x = 3,671,821,932.14/68,855.94
  6. Step 6: Final answer
    x = 53,326.15

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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.