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Finding the Fourth Proportional to 57,276.60, 85,914.90 and 53,996.10

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Solution

The fourth proportional to 57,276.60, 85,914.90 and 53,996.10 is: 80,994.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,276.60 : 85,914.90 = 53,996.10 : x
  2. Step 2: Convert to fraction form
    57,276.60/85,914.90 = 53,996.10/x
  3. Step 3: Cross multiply
    57,276.60x = 85,914.90 × 53,996.10
  4. Step 4: Simplify right side
    57,276.60x = 4,639,069,531.89
  5. Step 5: Solve for x
    x = 4,639,069,531.89/57,276.60
  6. Step 6: Final answer
    x = 80,994.15

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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.