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Finding the Fourth Proportional to 36,661.10, 54,955.20 and 16,905.20

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Solution

The fourth proportional to 36,661.10, 54,955.20 and 16,905.20 is: 25,340.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,661.10 : 54,955.20 = 16,905.20 : x
  2. Step 2: Convert to fraction form
    36,661.10/54,955.20 = 16,905.20/x
  3. Step 3: Cross multiply
    36,661.10x = 54,955.20 × 16,905.20
  4. Step 4: Simplify right side
    36,661.10x = 929,028,647.04
  5. Step 5: Solve for x
    x = 929,028,647.04/36,661.10
  6. Step 6: Final answer
    x = 25,340.99

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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.