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Finding the Fourth Proportional to 17,338.98, 25,988.60 and 8,458.94

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Solution

The fourth proportional to 17,338.98, 25,988.60 and 8,458.94 is: 12,678.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,338.98 : 25,988.60 = 8,458.94 : x
  2. Step 2: Convert to fraction form
    17,338.98/25,988.60 = 8,458.94/x
  3. Step 3: Cross multiply
    17,338.98x = 25,988.60 × 8,458.94
  4. Step 4: Simplify right side
    17,338.98x = 219,836,008.08
  5. Step 5: Solve for x
    x = 219,836,008.08/17,338.98
  6. Step 6: Final answer
    x = 12,678.72

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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.