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Finding the Fourth Proportional to 18,048.30, 24,918.21 and 11,343.12

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Solution

The fourth proportional to 18,048.30, 24,918.21 and 11,343.12 is: 15,660.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,048.30 : 24,918.21 = 11,343.12 : x
  2. Step 2: Convert to fraction form
    18,048.30/24,918.21 = 11,343.12/x
  3. Step 3: Cross multiply
    18,048.30x = 24,918.21 × 11,343.12
  4. Step 4: Simplify right side
    18,048.30x = 282,650,246.22
  5. Step 5: Solve for x
    x = 282,650,246.22/18,048.30
  6. Step 6: Final answer
    x = 15,660.77

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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.