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Finding the Fourth Proportional to 18,698.02, 25,914.67 and 18,348.10

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Solution

The fourth proportional to 18,698.02, 25,914.67 and 18,348.10 is: 25,429.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,698.02 : 25,914.67 = 18,348.10 : x
  2. Step 2: Convert to fraction form
    18,698.02/25,914.67 = 18,348.10/x
  3. Step 3: Cross multiply
    18,698.02x = 25,914.67 × 18,348.10
  4. Step 4: Simplify right side
    18,698.02x = 475,484,845.97
  5. Step 5: Solve for x
    x = 475,484,845.97/18,698.02
  6. Step 6: Final answer
    x = 25,429.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.