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Finding the Fourth Proportional to 12,344.48, 18,533.08 and 7,356.08

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Solution

The fourth proportional to 12,344.48, 18,533.08 and 7,356.08 is: 11,043.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,344.48 : 18,533.08 = 7,356.08 : x
  2. Step 2: Convert to fraction form
    12,344.48/18,533.08 = 7,356.08/x
  3. Step 3: Cross multiply
    12,344.48x = 18,533.08 × 7,356.08
  4. Step 4: Simplify right side
    12,344.48x = 136,330,819.13
  5. Step 5: Solve for x
    x = 136,330,819.13/12,344.48
  6. Step 6: Final answer
    x = 11,043.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.