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Finding the Fourth Proportional to 17,603.61, 26,394.96 and 7,078.62

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Solution

The fourth proportional to 17,603.61, 26,394.96 and 7,078.62 is: 10,613.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,603.61 : 26,394.96 = 7,078.62 : x
  2. Step 2: Convert to fraction form
    17,603.61/26,394.96 = 7,078.62/x
  3. Step 3: Cross multiply
    17,603.61x = 26,394.96 × 7,078.62
  4. Step 4: Simplify right side
    17,603.61x = 186,839,891.76
  5. Step 5: Solve for x
    x = 186,839,891.76/17,603.61
  6. Step 6: Final answer
    x = 10,613.73

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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.