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Finding the Fourth Proportional to 54,216.70, 81,284.88 and 25,739.56

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Solution

The fourth proportional to 54,216.70, 81,284.88 and 25,739.56 is: 38,590.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,216.70 : 81,284.88 = 25,739.56 : x
  2. Step 2: Convert to fraction form
    54,216.70/81,284.88 = 25,739.56/x
  3. Step 3: Cross multiply
    54,216.70x = 81,284.88 × 25,739.56
  4. Step 4: Simplify right side
    54,216.70x = 2,092,237,045.85
  5. Step 5: Solve for x
    x = 2,092,237,045.85/54,216.70
  6. Step 6: Final answer
    x = 38,590.27

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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.