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Finding the Fourth Proportional to 38,644.59, 57,620.74 and 37,944.75

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Solution

The fourth proportional to 38,644.59, 57,620.74 and 37,944.75 is: 56,577.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,644.59 : 57,620.74 = 37,944.75 : x
  2. Step 2: Convert to fraction form
    38,644.59/57,620.74 = 37,944.75/x
  3. Step 3: Cross multiply
    38,644.59x = 57,620.74 × 37,944.75
  4. Step 4: Simplify right side
    38,644.59x = 2,186,404,479.25
  5. Step 5: Solve for x
    x = 2,186,404,479.25/38,644.59
  6. Step 6: Final answer
    x = 56,577.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.