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Finding the Fourth Proportional to 35,021.71, 48,328.28 and 19,105.21

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Solution

The fourth proportional to 35,021.71, 48,328.28 and 19,105.21 is: 26,364.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,021.71 : 48,328.28 = 19,105.21 : x
  2. Step 2: Convert to fraction form
    35,021.71/48,328.28 = 19,105.21/x
  3. Step 3: Cross multiply
    35,021.71x = 48,328.28 × 19,105.21
  4. Step 4: Simplify right side
    35,021.71x = 923,321,842.81
  5. Step 5: Solve for x
    x = 923,321,842.81/35,021.71
  6. Step 6: Final answer
    x = 26,364.27

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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.