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Finding the Fourth Proportional to 34,779.98, 47,996.73 and 19,672.80

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Solution

The fourth proportional to 34,779.98, 47,996.73 and 19,672.80 is: 27,148.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,779.98 : 47,996.73 = 19,672.80 : x
  2. Step 2: Convert to fraction form
    34,779.98/47,996.73 = 19,672.80/x
  3. Step 3: Cross multiply
    34,779.98x = 47,996.73 × 19,672.80
  4. Step 4: Simplify right side
    34,779.98x = 944,230,069.94
  5. Step 5: Solve for x
    x = 944,230,069.94/34,779.98
  6. Step 6: Final answer
    x = 27,148.67

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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.