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Finding the Fourth Proportional to 12,693.14, 17,515.97 and 7,027.49

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Solution

The fourth proportional to 12,693.14, 17,515.97 and 7,027.49 is: 9,697.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,693.14 : 17,515.97 = 7,027.49 : x
  2. Step 2: Convert to fraction form
    12,693.14/17,515.97 = 7,027.49/x
  3. Step 3: Cross multiply
    12,693.14x = 17,515.97 × 7,027.49
  4. Step 4: Simplify right side
    12,693.14x = 123,093,312.67
  5. Step 5: Solve for x
    x = 123,093,312.67/12,693.14
  6. Step 6: Final answer
    x = 9,697.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.