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Finding the Fourth Proportional to 11,394.69, 17,097.96 and 8,620.53

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Solution

The fourth proportional to 11,394.69, 17,097.96 and 8,620.53 is: 12,935.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,394.69 : 17,097.96 = 8,620.53 : x
  2. Step 2: Convert to fraction form
    11,394.69/17,097.96 = 8,620.53/x
  3. Step 3: Cross multiply
    11,394.69x = 17,097.96 × 8,620.53
  4. Step 4: Simplify right side
    11,394.69x = 147,393,477.12
  5. Step 5: Solve for x
    x = 147,393,477.12/11,394.69
  6. Step 6: Final answer
    x = 12,935.28

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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.