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Finding the Fourth Proportional to 61,390.54, 92,076.70 and 17,012.67

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Solution

The fourth proportional to 61,390.54, 92,076.70 and 17,012.67 is: 25,516.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,390.54 : 92,076.70 = 17,012.67 : x
  2. Step 2: Convert to fraction form
    61,390.54/92,076.70 = 17,012.67/x
  3. Step 3: Cross multiply
    61,390.54x = 92,076.70 × 17,012.67
  4. Step 4: Simplify right side
    61,390.54x = 1,566,469,966.34
  5. Step 5: Solve for x
    x = 1,566,469,966.34/61,390.54
  6. Step 6: Final answer
    x = 25,516.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.