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Finding the Fourth Proportional to 18,057.15, 24,918.13 and 10,503.70

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Solution

The fourth proportional to 18,057.15, 24,918.13 and 10,503.70 is: 14,494.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,057.15 : 24,918.13 = 10,503.70 : x
  2. Step 2: Convert to fraction form
    18,057.15/24,918.13 = 10,503.70/x
  3. Step 3: Cross multiply
    18,057.15x = 24,918.13 × 10,503.70
  4. Step 4: Simplify right side
    18,057.15x = 261,732,562.08
  5. Step 5: Solve for x
    x = 261,732,562.08/18,057.15
  6. Step 6: Final answer
    x = 14,494.68

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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.