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Finding the Fourth Proportional to 36,576.60, 54,929.70 and 28,276.80

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Solution

The fourth proportional to 36,576.60, 54,929.70 and 28,276.80 is: 42,465.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,576.60 : 54,929.70 = 28,276.80 : x
  2. Step 2: Convert to fraction form
    36,576.60/54,929.70 = 28,276.80/x
  3. Step 3: Cross multiply
    36,576.60x = 54,929.70 × 28,276.80
  4. Step 4: Simplify right side
    36,576.60x = 1,553,236,140.96
  5. Step 5: Solve for x
    x = 1,553,236,140.96/36,576.60
  6. Step 6: Final answer
    x = 42,465.30

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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.