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Finding the Fourth Proportional to 18,964.03, 28,446.03 and 6,484.15

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Solution

The fourth proportional to 18,964.03, 28,446.03 and 6,484.15 is: 9,726.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,964.03 : 28,446.03 = 6,484.15 : x
  2. Step 2: Convert to fraction form
    18,964.03/28,446.03 = 6,484.15/x
  3. Step 3: Cross multiply
    18,964.03x = 28,446.03 × 6,484.15
  4. Step 4: Simplify right side
    18,964.03x = 184,448,325.42
  5. Step 5: Solve for x
    x = 184,448,325.42/18,964.03
  6. Step 6: Final answer
    x = 9,726.22

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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.