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Finding the Fourth Proportional to 15,051.74, 20,770.49 and 8,336.98

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Solution

The fourth proportional to 15,051.74, 20,770.49 and 8,336.98 is: 11,504.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,051.74 : 20,770.49 = 8,336.98 : x
  2. Step 2: Convert to fraction form
    15,051.74/20,770.49 = 8,336.98/x
  3. Step 3: Cross multiply
    15,051.74x = 20,770.49 × 8,336.98
  4. Step 4: Simplify right side
    15,051.74x = 173,163,035.03
  5. Step 5: Solve for x
    x = 173,163,035.03/15,051.74
  6. Step 6: Final answer
    x = 11,504.52

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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.