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Finding the Fourth Proportional to 18,271.59, 27,408.03 and 9,384.53

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Solution

The fourth proportional to 18,271.59, 27,408.03 and 9,384.53 is: 14,077.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,271.59 : 27,408.03 = 9,384.53 : x
  2. Step 2: Convert to fraction form
    18,271.59/27,408.03 = 9,384.53/x
  3. Step 3: Cross multiply
    18,271.59x = 27,408.03 × 9,384.53
  4. Step 4: Simplify right side
    18,271.59x = 257,211,342.74
  5. Step 5: Solve for x
    x = 257,211,342.74/18,271.59
  6. Step 6: Final answer
    x = 14,077.12

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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.