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Finding the Fourth Proportional to 49,575.44, 74,411.76 and 36,390.44

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Solution

The fourth proportional to 49,575.44, 74,411.76 and 36,390.44 is: 54,621.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,575.44 : 74,411.76 = 36,390.44 : x
  2. Step 2: Convert to fraction form
    49,575.44/74,411.76 = 36,390.44/x
  3. Step 3: Cross multiply
    49,575.44x = 74,411.76 × 36,390.44
  4. Step 4: Simplify right side
    49,575.44x = 2,707,876,687.57
  5. Step 5: Solve for x
    x = 2,707,876,687.57/49,575.44
  6. Step 6: Final answer
    x = 54,621.33

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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.