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Finding the Fourth Proportional to 13,323.14, 18,384.98 and 7,353.54

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Solution

The fourth proportional to 13,323.14, 18,384.98 and 7,353.54 is: 10,147.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,323.14 : 18,384.98 = 7,353.54 : x
  2. Step 2: Convert to fraction form
    13,323.14/18,384.98 = 7,353.54/x
  3. Step 3: Cross multiply
    13,323.14x = 18,384.98 × 7,353.54
  4. Step 4: Simplify right side
    13,323.14x = 135,194,685.83
  5. Step 5: Solve for x
    x = 135,194,685.83/13,323.14
  6. Step 6: Final answer
    x = 10,147.36

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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.