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Finding the Fourth Proportional to 17,693.56, 24,421.04 and 13,857.56

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Solution

The fourth proportional to 17,693.56, 24,421.04 and 13,857.56 is: 19,126.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,693.56 : 24,421.04 = 13,857.56 : x
  2. Step 2: Convert to fraction form
    17,693.56/24,421.04 = 13,857.56/x
  3. Step 3: Cross multiply
    17,693.56x = 24,421.04 × 13,857.56
  4. Step 4: Simplify right side
    17,693.56x = 338,416,027.06
  5. Step 5: Solve for x
    x = 338,416,027.06/17,693.56
  6. Step 6: Final answer
    x = 19,126.51

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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.