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Finding the Fourth Proportional to 21,950.82, 32,930.73 and 7,159.41

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Solution

The fourth proportional to 21,950.82, 32,930.73 and 7,159.41 is: 10,740.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,950.82 : 32,930.73 = 7,159.41 : x
  2. Step 2: Convert to fraction form
    21,950.82/32,930.73 = 7,159.41/x
  3. Step 3: Cross multiply
    21,950.82x = 32,930.73 × 7,159.41
  4. Step 4: Simplify right side
    21,950.82x = 235,764,597.67
  5. Step 5: Solve for x
    x = 235,764,597.67/21,950.82
  6. Step 6: Final answer
    x = 10,740.58

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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.