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Finding the Fourth Proportional to 16,977.59, 25,470.79 and 6,447.79

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Solution

The fourth proportional to 16,977.59, 25,470.79 and 6,447.79 is: 9,673.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,977.59 : 25,470.79 = 6,447.79 : x
  2. Step 2: Convert to fraction form
    16,977.59/25,470.79 = 6,447.79/x
  3. Step 3: Cross multiply
    16,977.59x = 25,470.79 × 6,447.79
  4. Step 4: Simplify right side
    16,977.59x = 164,230,305.05
  5. Step 5: Solve for x
    x = 164,230,305.05/16,977.59
  6. Step 6: Final answer
    x = 9,673.36

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1.5x scale

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.