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Finding the Fourth Proportional to 54,509.69, 81,763.72 and 15,065.93

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Solution

The fourth proportional to 54,509.69, 81,763.72 and 15,065.93 is: 22,598.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,509.69 : 81,763.72 = 15,065.93 : x
  2. Step 2: Convert to fraction form
    54,509.69/81,763.72 = 15,065.93/x
  3. Step 3: Cross multiply
    54,509.69x = 81,763.72 × 15,065.93
  4. Step 4: Simplify right side
    54,509.69x = 1,231,846,035.58
  5. Step 5: Solve for x
    x = 1,231,846,035.58/54,509.69
  6. Step 6: Final answer
    x = 22,598.66

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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.