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Finding the Fourth Proportional to 18,052.09, 24,918.15 and 12,405.53

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Solution

The fourth proportional to 18,052.09, 24,918.15 and 12,405.53 is: 17,123.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,052.09 : 24,918.15 = 12,405.53 : x
  2. Step 2: Convert to fraction form
    18,052.09/24,918.15 = 12,405.53/x
  3. Step 3: Cross multiply
    18,052.09x = 24,918.15 × 12,405.53
  4. Step 4: Simplify right side
    18,052.09x = 309,122,857.37
  5. Step 5: Solve for x
    x = 309,122,857.37/18,052.09
  6. Step 6: Final answer
    x = 17,123.94

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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.