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Finding the Fourth Proportional to 52,610.82, 78,911.91 and 15,674.82

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Solution

The fourth proportional to 52,610.82, 78,911.91 and 15,674.82 is: 23,510.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,610.82 : 78,911.91 = 15,674.82 : x
  2. Step 2: Convert to fraction form
    52,610.82/78,911.91 = 15,674.82/x
  3. Step 3: Cross multiply
    52,610.82x = 78,911.91 × 15,674.82
  4. Step 4: Simplify right side
    52,610.82x = 1,236,929,985.11
  5. Step 5: Solve for x
    x = 1,236,929,985.11/52,610.82
  6. Step 6: Final answer
    x = 23,510.94

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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.