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Finding the Fourth Proportional to 30,819.52, 42,535.28 and 17,396.16

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Solution

The fourth proportional to 30,819.52, 42,535.28 and 17,396.16 is: 24,009.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,819.52 : 42,535.28 = 17,396.16 : x
  2. Step 2: Convert to fraction form
    30,819.52/42,535.28 = 17,396.16/x
  3. Step 3: Cross multiply
    30,819.52x = 42,535.28 × 17,396.16
  4. Step 4: Simplify right side
    30,819.52x = 739,950,536.52
  5. Step 5: Solve for x
    x = 739,950,536.52/30,819.52
  6. Step 6: Final answer
    x = 24,009.15

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