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Finding the Fourth Proportional to 18,297.69, 25,234.50 and 14,265.51

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Solution

The fourth proportional to 18,297.69, 25,234.50 and 14,265.51 is: 19,673.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,297.69 : 25,234.50 = 14,265.51 : x
  2. Step 2: Convert to fraction form
    18,297.69/25,234.50 = 14,265.51/x
  3. Step 3: Cross multiply
    18,297.69x = 25,234.50 × 14,265.51
  4. Step 4: Simplify right side
    18,297.69x = 359,983,012.10
  5. Step 5: Solve for x
    x = 359,983,012.10/18,297.69
  6. Step 6: Final answer
    x = 19,673.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.