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Finding the Fourth Proportional to 14,791.56, 20,412.36 and 8,503.56

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Solution

The fourth proportional to 14,791.56, 20,412.36 and 8,503.56 is: 11,734.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,791.56 : 20,412.36 = 8,503.56 : x
  2. Step 2: Convert to fraction form
    14,791.56/20,412.36 = 8,503.56/x
  3. Step 3: Cross multiply
    14,791.56x = 20,412.36 × 8,503.56
  4. Step 4: Simplify right side
    14,791.56x = 173,577,728.00
  5. Step 5: Solve for x
    x = 173,577,728.00/14,791.56
  6. Step 6: Final answer
    x = 11,734.92

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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.