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Finding the Fourth Proportional to 57,663.90, 86,323.05 and 54,246.30

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Solution

The fourth proportional to 57,663.90, 86,323.05 and 54,246.30 is: 81,206.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,663.90 : 86,323.05 = 54,246.30 : x
  2. Step 2: Convert to fraction form
    57,663.90/86,323.05 = 54,246.30/x
  3. Step 3: Cross multiply
    57,663.90x = 86,323.05 × 54,246.30
  4. Step 4: Simplify right side
    57,663.90x = 4,682,706,067.22
  5. Step 5: Solve for x
    x = 4,682,706,067.22/57,663.90
  6. Step 6: Final answer
    x = 81,206.89

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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.