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Finding the Fourth Proportional to 61,209.80, 91,804.11 and 16,826.00

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Solution

The fourth proportional to 61,209.80, 91,804.11 and 16,826.00 is: 25,236.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,209.80 : 91,804.11 = 16,826.00 : x
  2. Step 2: Convert to fraction form
    61,209.80/91,804.11 = 16,826.00/x
  3. Step 3: Cross multiply
    61,209.80x = 91,804.11 × 16,826.00
  4. Step 4: Simplify right side
    61,209.80x = 1,544,696,254.66
  5. Step 5: Solve for x
    x = 1,544,696,254.66/61,209.80
  6. Step 6: Final answer
    x = 25,236.09

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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.