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Finding the Fourth Proportional to 54,707.80, 82,054.41 and 15,261.62

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Solution

The fourth proportional to 54,707.80, 82,054.41 and 15,261.62 is: 22,890.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,707.80 : 82,054.41 = 15,261.62 : x
  2. Step 2: Convert to fraction form
    54,707.80/82,054.41 = 15,261.62/x
  3. Step 3: Cross multiply
    54,707.80x = 82,054.41 × 15,261.62
  4. Step 4: Simplify right side
    54,707.80x = 1,252,283,224.74
  5. Step 5: Solve for x
    x = 1,252,283,224.74/54,707.80
  6. Step 6: Final answer
    x = 22,890.40

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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.