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Finding the Fourth Proportional to 34,424.28, 47,505.96 and 19,320.21

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Solution

The fourth proportional to 34,424.28, 47,505.96 and 19,320.21 is: 26,662.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,424.28 : 47,505.96 = 19,320.21 : x
  2. Step 2: Convert to fraction form
    34,424.28/47,505.96 = 19,320.21/x
  3. Step 3: Cross multiply
    34,424.28x = 47,505.96 × 19,320.21
  4. Step 4: Simplify right side
    34,424.28x = 917,825,123.45
  5. Step 5: Solve for x
    x = 917,825,123.45/34,424.28
  6. Step 6: Final answer
    x = 26,662.14

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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.