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Finding the Fourth Proportional to 15,066.76, 20,791.92 and 8,352.25

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Solution

The fourth proportional to 15,066.76, 20,791.92 and 8,352.25 is: 11,525.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,066.76 : 20,791.92 = 8,352.25 : x
  2. Step 2: Convert to fraction form
    15,066.76/20,791.92 = 8,352.25/x
  3. Step 3: Cross multiply
    15,066.76x = 20,791.92 × 8,352.25
  4. Step 4: Simplify right side
    15,066.76x = 173,659,313.82
  5. Step 5: Solve for x
    x = 173,659,313.82/15,066.76
  6. Step 6: Final answer
    x = 11,525.99

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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.