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Finding the Fourth Proportional to 12,424.68, 18,631.26 and 7,232.04

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Solution

The fourth proportional to 12,424.68, 18,631.26 and 7,232.04 is: 10,844.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,424.68 : 18,631.26 = 7,232.04 : x
  2. Step 2: Convert to fraction form
    12,424.68/18,631.26 = 7,232.04/x
  3. Step 3: Cross multiply
    12,424.68x = 18,631.26 × 7,232.04
  4. Step 4: Simplify right side
    12,424.68x = 134,742,017.57
  5. Step 5: Solve for x
    x = 134,742,017.57/12,424.68
  6. Step 6: Final answer
    x = 10,844.71

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1.5x scale

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.