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Finding the Fourth Proportional to 18,956.66, 28,428.83 and 6,303.01

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Solution

The fourth proportional to 18,956.66, 28,428.83 and 6,303.01 is: 9,452.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,956.66 : 28,428.83 = 6,303.01 : x
  2. Step 2: Convert to fraction form
    18,956.66/28,428.83 = 6,303.01/x
  3. Step 3: Cross multiply
    18,956.66x = 28,428.83 × 6,303.01
  4. Step 4: Simplify right side
    18,956.66x = 179,187,199.78
  5. Step 5: Solve for x
    x = 179,187,199.78/18,956.66
  6. Step 6: Final answer
    x = 9,452.47

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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.