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Finding the Fourth Proportional to 18,605.80, 27,908.70 and 16,532.20

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Solution

The fourth proportional to 18,605.80, 27,908.70 and 16,532.20 is: 24,798.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,605.80 : 27,908.70 = 16,532.20 : x
  2. Step 2: Convert to fraction form
    18,605.80/27,908.70 = 16,532.20/x
  3. Step 3: Cross multiply
    18,605.80x = 27,908.70 × 16,532.20
  4. Step 4: Simplify right side
    18,605.80x = 461,392,210.14
  5. Step 5: Solve for x
    x = 461,392,210.14/18,605.80
  6. Step 6: Final answer
    x = 24,798.30

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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.