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Finding the Fourth Proportional to 11,232.40, 16,816.20 and 11,232.40

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Solution

The fourth proportional to 11,232.40, 16,816.20 and 11,232.40 is: 16,816.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,232.40 : 16,816.20 = 11,232.40 : x
  2. Step 2: Convert to fraction form
    11,232.40/16,816.20 = 11,232.40/x
  3. Step 3: Cross multiply
    11,232.40x = 16,816.20 × 11,232.40
  4. Step 4: Simplify right side
    11,232.40x = 188,886,284.88
  5. Step 5: Solve for x
    x = 188,886,284.88/11,232.40
  6. Step 6: Final answer
    x = 16,816.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.