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Finding the Fourth Proportional to 57,374.60, 85,889.10 and 51,153.80

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Solution

The fourth proportional to 57,374.60, 85,889.10 and 51,153.80 is: 76,576.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,374.60 : 85,889.10 = 51,153.80 : x
  2. Step 2: Convert to fraction form
    57,374.60/85,889.10 = 51,153.80/x
  3. Step 3: Cross multiply
    57,374.60x = 85,889.10 × 51,153.80
  4. Step 4: Simplify right side
    57,374.60x = 4,393,553,843.58
  5. Step 5: Solve for x
    x = 4,393,553,843.58/57,374.60
  6. Step 6: Final answer
    x = 76,576.64

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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.