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Finding the Fourth Proportional to 54,903.80, 82,355.70 and 41,781.80

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Solution

The fourth proportional to 54,903.80, 82,355.70 and 41,781.80 is: 62,672.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,903.80 : 82,355.70 = 41,781.80 : x
  2. Step 2: Convert to fraction form
    54,903.80/82,355.70 = 41,781.80/x
  3. Step 3: Cross multiply
    54,903.80x = 82,355.70 × 41,781.80
  4. Step 4: Simplify right side
    54,903.80x = 3,440,969,386.26
  5. Step 5: Solve for x
    x = 3,440,969,386.26/54,903.80
  6. Step 6: Final answer
    x = 62,672.70

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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.