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Finding the Fourth Proportional to 18,342.65, 27,483.57 and 16,810.54

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Solution

The fourth proportional to 18,342.65, 27,483.57 and 16,810.54 is: 25,187.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,342.65 : 27,483.57 = 16,810.54 : x
  2. Step 2: Convert to fraction form
    18,342.65/27,483.57 = 16,810.54/x
  3. Step 3: Cross multiply
    18,342.65x = 27,483.57 × 16,810.54
  4. Step 4: Simplify right side
    18,342.65x = 462,013,584.12
  5. Step 5: Solve for x
    x = 462,013,584.12/18,342.65
  6. Step 6: Final answer
    x = 25,187.94

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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.