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Finding the Fourth Proportional to 18,483.62, 27,726.94 and 7,384.24

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Solution

The fourth proportional to 18,483.62, 27,726.94 and 7,384.24 is: 11,076.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,483.62 : 27,726.94 = 7,384.24 : x
  2. Step 2: Convert to fraction form
    18,483.62/27,726.94 = 7,384.24/x
  3. Step 3: Cross multiply
    18,483.62x = 27,726.94 × 7,384.24
  4. Step 4: Simplify right side
    18,483.62x = 204,742,240.79
  5. Step 5: Solve for x
    x = 204,742,240.79/18,483.62
  6. Step 6: Final answer
    x = 11,076.96

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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.