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Finding the Fourth Proportional to 37,980.60, 56,970.90 and 36,166.20

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Solution

The fourth proportional to 37,980.60, 56,970.90 and 36,166.20 is: 54,249.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,980.60 : 56,970.90 = 36,166.20 : x
  2. Step 2: Convert to fraction form
    37,980.60/56,970.90 = 36,166.20/x
  3. Step 3: Cross multiply
    37,980.60x = 56,970.90 × 36,166.20
  4. Step 4: Simplify right side
    37,980.60x = 2,060,420,963.58
  5. Step 5: Solve for x
    x = 2,060,420,963.58/37,980.60
  6. Step 6: Final answer
    x = 54,249.30

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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.