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Finding the Fourth Proportional to 61,207.50, 91,810.11 and 16,834.06

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Solution

The fourth proportional to 61,207.50, 91,810.11 and 16,834.06 is: 25,250.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,207.50 : 91,810.11 = 16,834.06 : x
  2. Step 2: Convert to fraction form
    61,207.50/91,810.11 = 16,834.06/x
  3. Step 3: Cross multiply
    61,207.50x = 91,810.11 × 16,834.06
  4. Step 4: Simplify right side
    61,207.50x = 1,545,536,900.35
  5. Step 5: Solve for x
    x = 1,545,536,900.35/61,207.50
  6. Step 6: Final answer
    x = 25,250.78

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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.