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Finding the Fourth Proportional to 67,792, 93,556.80 and 37,985.92

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Solution

The fourth proportional to 67,792, 93,556.80 and 37,985.92 is: 52,422.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,792 : 93,556.80 = 37,985.92 : x
  2. Step 2: Convert to fraction form
    67,792/93,556.80 = 37,985.92/x
  3. Step 3: Cross multiply
    67,792x = 93,556.80 × 37,985.92
  4. Step 4: Simplify right side
    67,792x = 3,553,841,120.26
  5. Step 5: Solve for x
    x = 3,553,841,120.26/67,792
  6. Step 6: Final answer
    x = 52,422.72

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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.