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Finding the Fourth Proportional to 71,651.34, 107,476.88 and 19,060.82

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Solution

The fourth proportional to 71,651.34, 107,476.88 and 19,060.82 is: 28,591.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,651.34 : 107,476.88 = 19,060.82 : x
  2. Step 2: Convert to fraction form
    71,651.34/107,476.88 = 19,060.82/x
  3. Step 3: Cross multiply
    71,651.34x = 107,476.88 × 19,060.82
  4. Step 4: Simplify right side
    71,651.34x = 2,048,597,945.97
  5. Step 5: Solve for x
    x = 2,048,597,945.97/71,651.34
  6. Step 6: Final answer
    x = 28,591.20

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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.