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Finding the Fourth Proportional to 16,693.76, 25,040.95 and 7,806.65

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Solution

The fourth proportional to 16,693.76, 25,040.95 and 7,806.65 is: 11,710.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,693.76 : 25,040.95 = 7,806.65 : x
  2. Step 2: Convert to fraction form
    16,693.76/25,040.95 = 7,806.65/x
  3. Step 3: Cross multiply
    16,693.76x = 25,040.95 × 7,806.65
  4. Step 4: Simplify right side
    16,693.76x = 195,485,787.60
  5. Step 5: Solve for x
    x = 195,485,787.60/16,693.76
  6. Step 6: Final answer
    x = 11,710.11

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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.