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Finding the Fourth Proportional to 16,933.68, 25,382.88 and 7,078.68

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Solution

The fourth proportional to 16,933.68, 25,382.88 and 7,078.68 is: 10,610.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,933.68 : 25,382.88 = 7,078.68 : x
  2. Step 2: Convert to fraction form
    16,933.68/25,382.88 = 7,078.68/x
  3. Step 3: Cross multiply
    16,933.68x = 25,382.88 × 7,078.68
  4. Step 4: Simplify right side
    16,933.68x = 179,677,285.00
  5. Step 5: Solve for x
    x = 179,677,285.00/16,933.68
  6. Step 6: Final answer
    x = 10,610.65

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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.