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Finding the Fourth Proportional to 18,914, 26,101.50 and 10,530.68

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Solution

The fourth proportional to 18,914, 26,101.50 and 10,530.68 is: 14,532.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,914 : 26,101.50 = 10,530.68 : x
  2. Step 2: Convert to fraction form
    18,914/26,101.50 = 10,530.68/x
  3. Step 3: Cross multiply
    18,914x = 26,101.50 × 10,530.68
  4. Step 4: Simplify right side
    18,914x = 274,866,544.02
  5. Step 5: Solve for x
    x = 274,866,544.02/18,914
  6. Step 6: Final answer
    x = 14,532.44

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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.