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Finding the Fourth Proportional to 57,622.44, 79,497.54 and 38,729.64

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Solution

The fourth proportional to 57,622.44, 79,497.54 and 38,729.64 is: 53,432.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,622.44 : 79,497.54 = 38,729.64 : x
  2. Step 2: Convert to fraction form
    57,622.44/79,497.54 = 38,729.64/x
  3. Step 3: Cross multiply
    57,622.44x = 79,497.54 × 38,729.64
  4. Step 4: Simplify right side
    57,622.44x = 3,078,911,105.09
  5. Step 5: Solve for x
    x = 3,078,911,105.09/57,622.44
  6. Step 6: Final answer
    x = 53,432.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.