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Finding the Fourth Proportional to 34,488.81, 51,696.43 and 19,665.81

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Solution

The fourth proportional to 34,488.81, 51,696.43 and 19,665.81 is: 29,477.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,488.81 : 51,696.43 = 19,665.81 : x
  2. Step 2: Convert to fraction form
    34,488.81/51,696.43 = 19,665.81/x
  3. Step 3: Cross multiply
    34,488.81x = 51,696.43 × 19,665.81
  4. Step 4: Simplify right side
    34,488.81x = 1,016,652,170.06
  5. Step 5: Solve for x
    x = 1,016,652,170.06/34,488.81
  6. Step 6: Final answer
    x = 29,477.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.