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Finding the Fourth Proportional to 11,216.40, 16,824.60 and 10,341.60

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Solution

The fourth proportional to 11,216.40, 16,824.60 and 10,341.60 is: 15,512.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,216.40 : 16,824.60 = 10,341.60 : x
  2. Step 2: Convert to fraction form
    11,216.40/16,824.60 = 10,341.60/x
  3. Step 3: Cross multiply
    11,216.40x = 16,824.60 × 10,341.60
  4. Step 4: Simplify right side
    11,216.40x = 173,993,283.36
  5. Step 5: Solve for x
    x = 173,993,283.36/11,216.40
  6. Step 6: Final answer
    x = 15,512.40

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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.