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Finding the Fourth Proportional to 16,659.90, 24,993.80 and 4,972.82

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Solution

The fourth proportional to 16,659.90, 24,993.80 and 4,972.82 is: 7,460.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,659.90 : 24,993.80 = 4,972.82 : x
  2. Step 2: Convert to fraction form
    16,659.90/24,993.80 = 4,972.82/x
  3. Step 3: Cross multiply
    16,659.90x = 24,993.80 × 4,972.82
  4. Step 4: Simplify right side
    16,659.90x = 124,289,537.33
  5. Step 5: Solve for x
    x = 124,289,537.33/16,659.90
  6. Step 6: Final answer
    x = 7,460.40

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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.