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Finding the Fourth Proportional to 18,325.12, 27,483.90 and 8,955.52

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Solution

The fourth proportional to 18,325.12, 27,483.90 and 8,955.52 is: 13,431.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,325.12 : 27,483.90 = 8,955.52 : x
  2. Step 2: Convert to fraction form
    18,325.12/27,483.90 = 8,955.52/x
  3. Step 3: Cross multiply
    18,325.12x = 27,483.90 × 8,955.52
  4. Step 4: Simplify right side
    18,325.12x = 246,132,616.13
  5. Step 5: Solve for x
    x = 246,132,616.13/18,325.12
  6. Step 6: Final answer
    x = 13,431.43

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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.