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Finding the Fourth Proportional to 47,679.44, 71,198.08 and 38,931.44

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Solution

The fourth proportional to 47,679.44, 71,198.08 and 38,931.44 is: 58,134.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,679.44 : 71,198.08 = 38,931.44 : x
  2. Step 2: Convert to fraction form
    47,679.44/71,198.08 = 38,931.44/x
  3. Step 3: Cross multiply
    47,679.44x = 71,198.08 × 38,931.44
  4. Step 4: Simplify right side
    47,679.44x = 2,771,843,779.64
  5. Step 5: Solve for x
    x = 2,771,843,779.64/47,679.44
  6. Step 6: Final answer
    x = 58,134.99

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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.