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Finding the Fourth Proportional to 18,095.40, 27,143.10 and 16,309.80

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Solution

The fourth proportional to 18,095.40, 27,143.10 and 16,309.80 is: 24,464.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,095.40 : 27,143.10 = 16,309.80 : x
  2. Step 2: Convert to fraction form
    18,095.40/27,143.10 = 16,309.80/x
  3. Step 3: Cross multiply
    18,095.40x = 27,143.10 × 16,309.80
  4. Step 4: Simplify right side
    18,095.40x = 442,698,532.38
  5. Step 5: Solve for x
    x = 442,698,532.38/18,095.40
  6. Step 6: Final answer
    x = 24,464.70

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Similar ratio
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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.