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Finding the Fourth Proportional to 18,324.40, 27,486.60 and 16,477.60

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Solution

The fourth proportional to 18,324.40, 27,486.60 and 16,477.60 is: 24,716.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,324.40 : 27,486.60 = 16,477.60 : x
  2. Step 2: Convert to fraction form
    18,324.40/27,486.60 = 16,477.60/x
  3. Step 3: Cross multiply
    18,324.40x = 27,486.60 × 16,477.60
  4. Step 4: Simplify right side
    18,324.40x = 452,913,200.16
  5. Step 5: Solve for x
    x = 452,913,200.16/18,324.40
  6. Step 6: Final answer
    x = 24,716.40

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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.