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Finding the Fourth Proportional to 13,234.44, 18,262.16 and 7,929.12

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Solution

The fourth proportional to 13,234.44, 18,262.16 and 7,929.12 is: 10,941.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,234.44 : 18,262.16 = 7,929.12 : x
  2. Step 2: Convert to fraction form
    13,234.44/18,262.16 = 7,929.12/x
  3. Step 3: Cross multiply
    13,234.44x = 18,262.16 × 7,929.12
  4. Step 4: Simplify right side
    13,234.44x = 144,802,858.10
  5. Step 5: Solve for x
    x = 144,802,858.10/13,234.44
  6. Step 6: Final answer
    x = 10,941.37

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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.