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Finding the Fourth Proportional to 69,915.74, 96,483.71 and 38,084.63

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Solution

The fourth proportional to 69,915.74, 96,483.71 and 38,084.63 is: 52,556.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,915.74 : 96,483.71 = 38,084.63 : x
  2. Step 2: Convert to fraction form
    69,915.74/96,483.71 = 38,084.63/x
  3. Step 3: Cross multiply
    69,915.74x = 96,483.71 × 38,084.63
  4. Step 4: Simplify right side
    69,915.74x = 3,674,545,723.54
  5. Step 5: Solve for x
    x = 3,674,545,723.54/69,915.74
  6. Step 6: Final answer
    x = 52,556.78

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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.