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Finding the Fourth Proportional to 34,679.88, 47,858.04 and 19,571.76

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Solution

The fourth proportional to 34,679.88, 47,858.04 and 19,571.76 is: 27,008.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,679.88 : 47,858.04 = 19,571.76 : x
  2. Step 2: Convert to fraction form
    34,679.88/47,858.04 = 19,571.76/x
  3. Step 3: Cross multiply
    34,679.88x = 47,858.04 × 19,571.76
  4. Step 4: Simplify right side
    34,679.88x = 936,666,072.95
  5. Step 5: Solve for x
    x = 936,666,072.95/34,679.88
  6. Step 6: Final answer
    x = 27,008.92

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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.