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Finding the Fourth Proportional to 11,592.45, 16,003.79 and 9,069.20

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Solution

The fourth proportional to 11,592.45, 16,003.79 and 9,069.20 is: 12,520.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,592.45 : 16,003.79 = 9,069.20 : x
  2. Step 2: Convert to fraction form
    11,592.45/16,003.79 = 9,069.20/x
  3. Step 3: Cross multiply
    11,592.45x = 16,003.79 × 9,069.20
  4. Step 4: Simplify right side
    11,592.45x = 145,141,572.27
  5. Step 5: Solve for x
    x = 145,141,572.27/11,592.45
  6. Step 6: Final answer
    x = 12,520.35

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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.