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Finding the Fourth Proportional to 54,527.40, 81,791.10 and 41,405.40

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Solution

The fourth proportional to 54,527.40, 81,791.10 and 41,405.40 is: 62,108.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,527.40 : 81,791.10 = 41,405.40 : x
  2. Step 2: Convert to fraction form
    54,527.40/81,791.10 = 41,405.40/x
  3. Step 3: Cross multiply
    54,527.40x = 81,791.10 × 41,405.40
  4. Step 4: Simplify right side
    54,527.40x = 3,386,593,211.94
  5. Step 5: Solve for x
    x = 3,386,593,211.94/54,527.40
  6. Step 6: Final answer
    x = 62,108.10

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1.5x scale

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.