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Finding the Fourth Proportional to 57,216.10, 85,824.15 and 36,220.90

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Solution

The fourth proportional to 57,216.10, 85,824.15 and 36,220.90 is: 54,331.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,216.10 : 85,824.15 = 36,220.90 : x
  2. Step 2: Convert to fraction form
    57,216.10/85,824.15 = 36,220.90/x
  3. Step 3: Cross multiply
    57,216.10x = 85,824.15 × 36,220.90
  4. Step 4: Simplify right side
    57,216.10x = 3,108,627,954.74
  5. Step 5: Solve for x
    x = 3,108,627,954.74/57,216.10
  6. Step 6: Final answer
    x = 54,331.35

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Similar ratio
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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.