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Finding the Fourth Proportional to 18,435.68, 27,652.80 and 5,955.20

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Solution

The fourth proportional to 18,435.68, 27,652.80 and 5,955.20 is: 8,932.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,435.68 : 27,652.80 = 5,955.20 : x
  2. Step 2: Convert to fraction form
    18,435.68/27,652.80 = 5,955.20/x
  3. Step 3: Cross multiply
    18,435.68x = 27,652.80 × 5,955.20
  4. Step 4: Simplify right side
    18,435.68x = 164,677,954.56
  5. Step 5: Solve for x
    x = 164,677,954.56/18,435.68
  6. Step 6: Final answer
    x = 8,932.57

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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.