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Finding the Fourth Proportional to 57,216.90, 85,801.05 and 27,643.80

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Solution

The fourth proportional to 57,216.90, 85,801.05 and 27,643.80 is: 41,453.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,216.90 : 85,801.05 = 27,643.80 : x
  2. Step 2: Convert to fraction form
    57,216.90/85,801.05 = 27,643.80/x
  3. Step 3: Cross multiply
    57,216.90x = 85,801.05 × 27,643.80
  4. Step 4: Simplify right side
    57,216.90x = 2,371,867,065.99
  5. Step 5: Solve for x
    x = 2,371,867,065.99/57,216.90
  6. Step 6: Final answer
    x = 41,453.96

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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.