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Finding the Fourth Proportional to 15,050.76, 20,770.22 and 8,336.49

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Solution

The fourth proportional to 15,050.76, 20,770.22 and 8,336.49 is: 11,504.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,050.76 : 20,770.22 = 8,336.49 : x
  2. Step 2: Convert to fraction form
    15,050.76/20,770.22 = 8,336.49/x
  3. Step 3: Cross multiply
    15,050.76x = 20,770.22 × 8,336.49
  4. Step 4: Simplify right side
    15,050.76x = 173,150,689.65
  5. Step 5: Solve for x
    x = 173,150,689.65/15,050.76
  6. Step 6: Final answer
    x = 11,504.45

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Half scale
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Double scale
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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.