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Finding the Fourth Proportional to 54,695.91, 82,007.40 and 19,631.01

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Solution

The fourth proportional to 54,695.91, 82,007.40 and 19,631.01 is: 29,433.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,695.91 : 82,007.40 = 19,631.01 : x
  2. Step 2: Convert to fraction form
    54,695.91/82,007.40 = 19,631.01/x
  3. Step 3: Cross multiply
    54,695.91x = 82,007.40 × 19,631.01
  4. Step 4: Simplify right side
    54,695.91x = 1,609,888,089.47
  5. Step 5: Solve for x
    x = 1,609,888,089.47/54,695.91
  6. Step 6: Final answer
    x = 29,433.43

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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.