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Finding the Fourth Proportional to 54,454.60, 81,572.55 and 36,739.90

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Solution

The fourth proportional to 54,454.60, 81,572.55 and 36,739.90 is: 55,036.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,454.60 : 81,572.55 = 36,739.90 : x
  2. Step 2: Convert to fraction form
    54,454.60/81,572.55 = 36,739.90/x
  3. Step 3: Cross multiply
    54,454.60x = 81,572.55 × 36,739.90
  4. Step 4: Simplify right side
    54,454.60x = 2,996,967,329.75
  5. Step 5: Solve for x
    x = 2,996,967,329.75/54,454.60
  6. Step 6: Final answer
    x = 55,036.07

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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.