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Finding the Fourth Proportional to 24,819.79, 34,251.47 and 13,489.31

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Solution

The fourth proportional to 24,819.79, 34,251.47 and 13,489.31 is: 18,615.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,819.79 : 34,251.47 = 13,489.31 : x
  2. Step 2: Convert to fraction form
    24,819.79/34,251.47 = 13,489.31/x
  3. Step 3: Cross multiply
    24,819.79x = 34,251.47 × 13,489.31
  4. Step 4: Simplify right side
    24,819.79x = 462,028,458.08
  5. Step 5: Solve for x
    x = 462,028,458.08/24,819.79
  6. Step 6: Final answer
    x = 18,615.33

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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.