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Finding the Fourth Proportional to 69,162.94, 95,447.91 and 38,948.28

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Solution

The fourth proportional to 69,162.94, 95,447.91 and 38,948.28 is: 53,750.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,162.94 : 95,447.91 = 38,948.28 : x
  2. Step 2: Convert to fraction form
    69,162.94/95,447.91 = 38,948.28/x
  3. Step 3: Cross multiply
    69,162.94x = 95,447.91 × 38,948.28
  4. Step 4: Simplify right side
    69,162.94x = 3,717,531,924.09
  5. Step 5: Solve for x
    x = 3,717,531,924.09/69,162.94
  6. Step 6: Final answer
    x = 53,750.35

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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.