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Finding the Fourth Proportional to 30,475.36, 42,039.06 and 17,727.11

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Solution

The fourth proportional to 30,475.36, 42,039.06 and 17,727.11 is: 24,453.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,475.36 : 42,039.06 = 17,727.11 : x
  2. Step 2: Convert to fraction form
    30,475.36/42,039.06 = 17,727.11/x
  3. Step 3: Cross multiply
    30,475.36x = 42,039.06 × 17,727.11
  4. Step 4: Simplify right side
    30,475.36x = 745,230,830.72
  5. Step 5: Solve for x
    x = 745,230,830.72/30,475.36
  6. Step 6: Final answer
    x = 24,453.56

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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.