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Finding the Fourth Proportional to 13,077.12, 18,048.96 and 8,592.96

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Solution

The fourth proportional to 13,077.12, 18,048.96 and 8,592.96 is: 11,859.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,077.12 : 18,048.96 = 8,592.96 : x
  2. Step 2: Convert to fraction form
    13,077.12/18,048.96 = 8,592.96/x
  3. Step 3: Cross multiply
    13,077.12x = 18,048.96 × 8,592.96
  4. Step 4: Simplify right side
    13,077.12x = 155,093,991.32
  5. Step 5: Solve for x
    x = 155,093,991.32/13,077.12
  6. Step 6: Final answer
    x = 11,859.95

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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.