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Finding the Fourth Proportional to 17,365.44, 25,930.28 and 13,815.74

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Solution

The fourth proportional to 17,365.44, 25,930.28 and 13,815.74 is: 20,629.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,365.44 : 25,930.28 = 13,815.74 : x
  2. Step 2: Convert to fraction form
    17,365.44/25,930.28 = 13,815.74/x
  3. Step 3: Cross multiply
    17,365.44x = 25,930.28 × 13,815.74
  4. Step 4: Simplify right side
    17,365.44x = 358,246,006.61
  5. Step 5: Solve for x
    x = 358,246,006.61/17,365.44
  6. Step 6: Final answer
    x = 20,629.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.